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Finding the Fourth Proportional to 144,818.80, 217,163.40 and 65,892.40

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Solution

The fourth proportional to 144,818.80, 217,163.40 and 65,892.40 is: 98,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,818.80 : 217,163.40 = 65,892.40 : x
  2. Step 2: Convert to fraction form
    144,818.80/217,163.40 = 65,892.40/x
  3. Step 3: Cross multiply
    144,818.80x = 217,163.40 × 65,892.40
  4. Step 4: Simplify right side
    144,818.80x = 14,309,417,618.16
  5. Step 5: Solve for x
    x = 14,309,417,618.16/144,818.80
  6. Step 6: Final answer
    x = 98,809.12

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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.