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Finding the Fourth Proportional to 115,808.66, 159,802.52 and 64,824.24

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Solution

The fourth proportional to 115,808.66, 159,802.52 and 64,824.24 is: 89,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,808.66 : 159,802.52 = 64,824.24 : x
  2. Step 2: Convert to fraction form
    115,808.66/159,802.52 = 64,824.24/x
  3. Step 3: Cross multiply
    115,808.66x = 159,802.52 × 64,824.24
  4. Step 4: Simplify right side
    115,808.66x = 10,359,076,584.96
  5. Step 5: Solve for x
    x = 10,359,076,584.96/115,808.66
  6. Step 6: Final answer
    x = 89,449.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.