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Finding the Fourth Proportional to 87,408,082.65, 130,860,181.58 and 87,408,082.65

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Solution

The fourth proportional to 87,408,082.65, 130,860,181.58 and 87,408,082.65 is: 130,860,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,408,082.65 : 130,860,181.58 = 87,408,082.65 : x
  2. Step 2: Convert to fraction form
    87,408,082.65/130,860,181.58 = 87,408,082.65/x
  3. Step 3: Cross multiply
    87,408,082.65x = 130,860,181.58 × 87,408,082.65
  4. Step 4: Simplify right side
    87,408,082.65x = 11,438,237,566,701,608
  5. Step 5: Solve for x
    x = 11,438,237,566,701,608/87,408,082.65
  6. Step 6: Final answer
    x = 130,860,181.58

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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.