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Finding the Fourth Proportional to 88,081,315.90, 131,870,031.45 and 88,081,315.90

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Solution

The fourth proportional to 88,081,315.90, 131,870,031.45 and 88,081,315.90 is: 131,870,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,081,315.90 : 131,870,031.45 = 88,081,315.90 : x
  2. Step 2: Convert to fraction form
    88,081,315.90/131,870,031.45 = 88,081,315.90/x
  3. Step 3: Cross multiply
    88,081,315.90x = 131,870,031.45 × 88,081,315.90
  4. Step 4: Simplify right side
    88,081,315.90x = 11,615,285,897,890,386
  5. Step 5: Solve for x
    x = 11,615,285,897,890,386/88,081,315.90
  6. Step 6: Final answer
    x = 131,870,031.45

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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.