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Finding the Fourth Proportional to 60,697,728.60, 91,046,592.90 and 54,320,436.60

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Solution

The fourth proportional to 60,697,728.60, 91,046,592.90 and 54,320,436.60 is: 81,480,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,697,728.60 : 91,046,592.90 = 54,320,436.60 : x
  2. Step 2: Convert to fraction form
    60,697,728.60/91,046,592.90 = 54,320,436.60/x
  3. Step 3: Cross multiply
    60,697,728.60x = 91,046,592.90 × 54,320,436.60
  4. Step 4: Simplify right side
    60,697,728.60x = 4,945,690,677,270,461
  5. Step 5: Solve for x
    x = 4,945,690,677,270,461/60,697,728.60
  6. Step 6: Final answer
    x = 81,480,654.90

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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.