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Finding the Fourth Proportional to 61,803,221.70, 92,719,594.80 and 18,672,847.95

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Solution

The fourth proportional to 61,803,221.70, 92,719,594.80 and 18,672,847.95 is: 28,013,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,803,221.70 : 92,719,594.80 = 18,672,847.95 : x
  2. Step 2: Convert to fraction form
    61,803,221.70/92,719,594.80 = 18,672,847.95/x
  3. Step 3: Cross multiply
    61,803,221.70x = 92,719,594.80 × 18,672,847.95
  4. Step 4: Simplify right side
    61,803,221.70x = 1,731,338,895,686,010.50
  5. Step 5: Solve for x
    x = 1,731,338,895,686,010.50/61,803,221.70
  6. Step 6: Final answer
    x = 28,013,732.10

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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.