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Finding the Fourth Proportional to 119,343.80, 164,695.62 and 65,629.18

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Solution

The fourth proportional to 119,343.80, 164,695.62 and 65,629.18 is: 90,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,343.80 : 164,695.62 = 65,629.18 : x
  2. Step 2: Convert to fraction form
    119,343.80/164,695.62 = 65,629.18/x
  3. Step 3: Cross multiply
    119,343.80x = 164,695.62 × 65,629.18
  4. Step 4: Simplify right side
    119,343.80x = 10,808,838,490.19
  5. Step 5: Solve for x
    x = 10,808,838,490.19/119,343.80
  6. Step 6: Final answer
    x = 90,568.92

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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.