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Finding the Fourth Proportional to 60,660,061.70, 90,990,092.55 and 60,282,148.10

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Solution

The fourth proportional to 60,660,061.70, 90,990,092.55 and 60,282,148.10 is: 90,423,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,660,061.70 : 90,990,092.55 = 60,282,148.10 : x
  2. Step 2: Convert to fraction form
    60,660,061.70/90,990,092.55 = 60,282,148.10/x
  3. Step 3: Cross multiply
    60,660,061.70x = 90,990,092.55 × 60,282,148.10
  4. Step 4: Simplify right side
    60,660,061.70x = 5,485,078,234,731,807
  5. Step 5: Solve for x
    x = 5,485,078,234,731,807/60,660,061.70
  6. Step 6: Final answer
    x = 90,423,222.15

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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.