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Finding the Fourth Proportional to 89,071,765.90, 133,607,648.85 and 89,071,765.90

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Solution

The fourth proportional to 89,071,765.90, 133,607,648.85 and 89,071,765.90 is: 133,607,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,071,765.90 : 133,607,648.85 = 89,071,765.90 : x
  2. Step 2: Convert to fraction form
    89,071,765.90/133,607,648.85 = 89,071,765.90/x
  3. Step 3: Cross multiply
    89,071,765.90x = 133,607,648.85 × 89,071,765.90
  4. Step 4: Simplify right side
    89,071,765.90x = 11,900,669,220,816,604
  5. Step 5: Solve for x
    x = 11,900,669,220,816,604/89,071,765.90
  6. Step 6: Final answer
    x = 133,607,648.85

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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.