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Finding the Fourth Proportional to 88,654,326.90, 132,981,490.35 and 86,663,670.90

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Solution

The fourth proportional to 88,654,326.90, 132,981,490.35 and 86,663,670.90 is: 129,995,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,654,326.90 : 132,981,490.35 = 86,663,670.90 : x
  2. Step 2: Convert to fraction form
    88,654,326.90/132,981,490.35 = 86,663,670.90/x
  3. Step 3: Cross multiply
    88,654,326.90x = 132,981,490.35 × 86,663,670.90
  4. Step 4: Simplify right side
    88,654,326.90x = 11,524,664,115,483,926
  5. Step 5: Solve for x
    x = 11,524,664,115,483,926/88,654,326.90
  6. Step 6: Final answer
    x = 129,995,506.35

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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.