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Finding the Fourth Proportional to 89,113,318.90, 133,669,978.35 and 58,502,317.30

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Solution

The fourth proportional to 89,113,318.90, 133,669,978.35 and 58,502,317.30 is: 87,753,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,113,318.90 : 133,669,978.35 = 58,502,317.30 : x
  2. Step 2: Convert to fraction form
    89,113,318.90/133,669,978.35 = 58,502,317.30/x
  3. Step 3: Cross multiply
    89,113,318.90x = 133,669,978.35 × 58,502,317.30
  4. Step 4: Simplify right side
    89,113,318.90x = 7,820,003,486,915,830
  5. Step 5: Solve for x
    x = 7,820,003,486,915,830/89,113,318.90
  6. Step 6: Final answer
    x = 87,753,475.95

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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.