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Finding the Fourth Proportional to 119,343.71, 164,695.53 and 65,629.12

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Solution

The fourth proportional to 119,343.71, 164,695.53 and 65,629.12 is: 90,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,343.71 : 164,695.53 = 65,629.12 : x
  2. Step 2: Convert to fraction form
    119,343.71/164,695.53 = 65,629.12/x
  3. Step 3: Cross multiply
    119,343.71x = 164,695.53 × 65,629.12
  4. Step 4: Simplify right side
    119,343.71x = 10,808,822,701.83
  5. Step 5: Solve for x
    x = 10,808,822,701.83/119,343.71
  6. Step 6: Final answer
    x = 90,568.85

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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.