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Finding the Fourth Proportional to 91,486.55, 137,229.98 and 60,094.90

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Solution

The fourth proportional to 91,486.55, 137,229.98 and 60,094.90 is: 90,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,486.55 : 137,229.98 = 60,094.90 : x
  2. Step 2: Convert to fraction form
    91,486.55/137,229.98 = 60,094.90/x
  3. Step 3: Cross multiply
    91,486.55x = 137,229.98 × 60,094.90
  4. Step 4: Simplify right side
    91,486.55x = 8,246,821,925.10
  5. Step 5: Solve for x
    x = 8,246,821,925.10/91,486.55
  6. Step 6: Final answer
    x = 90,142.45

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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.