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Finding the Fourth Proportional to 71,318.40, 106,948.80 and 24,547.20

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Solution

The fourth proportional to 71,318.40, 106,948.80 and 24,547.20 is: 36,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.40 : 106,948.80 = 24,547.20 : x
  2. Step 2: Convert to fraction form
    71,318.40/106,948.80 = 24,547.20/x
  3. Step 3: Cross multiply
    71,318.40x = 106,948.80 × 24,547.20
  4. Step 4: Simplify right side
    71,318.40x = 2,625,293,583.36
  5. Step 5: Solve for x
    x = 2,625,293,583.36/71,318.40
  6. Step 6: Final answer
    x = 36,810.89

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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.