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Finding the Fourth Proportional to 70,766,373.87, 97,687,728.14 and 47,574,952.83

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Solution

The fourth proportional to 70,766,373.87, 97,687,728.14 and 47,574,952.83 is: 65,673,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,766,373.87 : 97,687,728.14 = 47,574,952.83 : x
  2. Step 2: Convert to fraction form
    70,766,373.87/97,687,728.14 = 47,574,952.83/x
  3. Step 3: Cross multiply
    70,766,373.87x = 97,687,728.14 × 47,574,952.83
  4. Step 4: Simplify right side
    70,766,373.87x = 4,647,489,058,092,489
  5. Step 5: Solve for x
    x = 4,647,489,058,092,489/70,766,373.87
  6. Step 6: Final answer
    x = 65,673,692.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.