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Finding the Fourth Proportional to 61,173,910.70, 91,811,057.70 and 60,695,613.80

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Solution

The fourth proportional to 61,173,910.70, 91,811,057.70 and 60,695,613.80 is: 91,093,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,173,910.70 : 91,811,057.70 = 60,695,613.80 : x
  2. Step 2: Convert to fraction form
    61,173,910.70/91,811,057.70 = 60,695,613.80/x
  3. Step 3: Cross multiply
    61,173,910.70x = 91,811,057.70 × 60,695,613.80
  4. Step 4: Simplify right side
    61,173,910.70x = 5,572,528,500,728,716
  5. Step 5: Solve for x
    x = 5,572,528,500,728,716/61,173,910.70
  6. Step 6: Final answer
    x = 91,093,219.92

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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.