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Finding the Fourth Proportional to 61,971,472.80, 92,957,209.20 and 58,444,279.20

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Solution

The fourth proportional to 61,971,472.80, 92,957,209.20 and 58,444,279.20 is: 87,666,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,971,472.80 : 92,957,209.20 = 58,444,279.20 : x
  2. Step 2: Convert to fraction form
    61,971,472.80/92,957,209.20 = 58,444,279.20/x
  3. Step 3: Cross multiply
    61,971,472.80x = 92,957,209.20 × 58,444,279.20
  4. Step 4: Simplify right side
    61,971,472.80x = 5,432,817,088,137,609
  5. Step 5: Solve for x
    x = 5,432,817,088,137,609/61,971,472.80
  6. Step 6: Final answer
    x = 87,666,418.80

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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.