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Finding the Fourth Proportional to 91,751.68, 137,627.40 and 60,579.52

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Solution

The fourth proportional to 91,751.68, 137,627.40 and 60,579.52 is: 90,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.68 : 137,627.40 = 60,579.52 : x
  2. Step 2: Convert to fraction form
    91,751.68/137,627.40 = 60,579.52/x
  3. Step 3: Cross multiply
    91,751.68x = 137,627.40 × 60,579.52
  4. Step 4: Simplify right side
    91,751.68x = 8,337,401,830.85
  5. Step 5: Solve for x
    x = 8,337,401,830.85/91,751.68
  6. Step 6: Final answer
    x = 90,869.20

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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.