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Finding the Fourth Proportional to 66,445,566.70, 99,687,012.45 and 32,368,024.30

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Solution

The fourth proportional to 66,445,566.70, 99,687,012.45 and 32,368,024.30 is: 48,561,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,566.70 : 99,687,012.45 = 32,368,024.30 : x
  2. Step 2: Convert to fraction form
    66,445,566.70/99,687,012.45 = 32,368,024.30/x
  3. Step 3: Cross multiply
    66,445,566.70x = 99,687,012.45 × 32,368,024.30
  4. Step 4: Simplify right side
    66,445,566.70x = 3,226,671,641,376,002.50
  5. Step 5: Solve for x
    x = 3,226,671,641,376,002.50/66,445,566.70
  6. Step 6: Final answer
    x = 48,561,127.58

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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.