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Finding the Fourth Proportional to 66,536,700.90, 99,655,752.15 and 54,592,764.90

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Solution

The fourth proportional to 66,536,700.90, 99,655,752.15 and 54,592,764.90 is: 81,766,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,536,700.90 : 99,655,752.15 = 54,592,764.90 : x
  2. Step 2: Convert to fraction form
    66,536,700.90/99,655,752.15 = 54,592,764.90/x
  3. Step 3: Cross multiply
    66,536,700.90x = 99,655,752.15 × 54,592,764.90
  4. Step 4: Simplify right side
    66,536,700.90x = 5,440,483,048,057,620
  5. Step 5: Solve for x
    x = 5,440,483,048,057,620/66,536,700.90
  6. Step 6: Final answer
    x = 81,766,648.70

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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.