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Finding the Fourth Proportional to 67,363.40, 101,045.10 and 66,211.40

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Solution

The fourth proportional to 67,363.40, 101,045.10 and 66,211.40 is: 99,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,363.40 : 101,045.10 = 66,211.40 : x
  2. Step 2: Convert to fraction form
    67,363.40/101,045.10 = 66,211.40/x
  3. Step 3: Cross multiply
    67,363.40x = 101,045.10 × 66,211.40
  4. Step 4: Simplify right side
    67,363.40x = 6,690,337,534.14
  5. Step 5: Solve for x
    x = 6,690,337,534.14/67,363.40
  6. Step 6: Final answer
    x = 99,317.10

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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.