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Finding the Fourth Proportional to 114,720.71, 172,105.36 and 35,840.88

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Solution

The fourth proportional to 114,720.71, 172,105.36 and 35,840.88 is: 53,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,720.71 : 172,105.36 = 35,840.88 : x
  2. Step 2: Convert to fraction form
    114,720.71/172,105.36 = 35,840.88/x
  3. Step 3: Cross multiply
    114,720.71x = 172,105.36 × 35,840.88
  4. Step 4: Simplify right side
    114,720.71x = 6,168,407,465.51
  5. Step 5: Solve for x
    x = 6,168,407,465.51/114,720.71
  6. Step 6: Final answer
    x = 53,768.91

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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.