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Finding the Fourth Proportional to 87,336,502.90, 130,752,811.95 and 87,336,502.90

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Solution

The fourth proportional to 87,336,502.90, 130,752,811.95 and 87,336,502.90 is: 130,752,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,336,502.90 : 130,752,811.95 = 87,336,502.90 : x
  2. Step 2: Convert to fraction form
    87,336,502.90/130,752,811.95 = 87,336,502.90/x
  3. Step 3: Cross multiply
    87,336,502.90x = 130,752,811.95 × 87,336,502.90
  4. Step 4: Simplify right side
    87,336,502.90x = 11,419,493,340,054,330
  5. Step 5: Solve for x
    x = 11,419,493,340,054,330/87,336,502.90
  6. Step 6: Final answer
    x = 130,752,811.95

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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.