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Finding the Fourth Proportional to 114,859.77, 172,289.61 and 35,980.13

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Solution

The fourth proportional to 114,859.77, 172,289.61 and 35,980.13 is: 53,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,859.77 : 172,289.61 = 35,980.13 : x
  2. Step 2: Convert to fraction form
    114,859.77/172,289.61 = 35,980.13/x
  3. Step 3: Cross multiply
    114,859.77x = 172,289.61 × 35,980.13
  4. Step 4: Simplify right side
    114,859.77x = 6,199,001,704.00
  5. Step 5: Solve for x
    x = 6,199,001,704.00/114,859.77
  6. Step 6: Final answer
    x = 53,970.17

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.