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Finding the Fourth Proportional to 92,490.86, 138,925.67 and 60,946.16

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Solution

The fourth proportional to 92,490.86, 138,925.67 and 60,946.16 is: 91,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,490.86 : 138,925.67 = 60,946.16 : x
  2. Step 2: Convert to fraction form
    92,490.86/138,925.67 = 60,946.16/x
  3. Step 3: Cross multiply
    92,490.86x = 138,925.67 × 60,946.16
  4. Step 4: Simplify right side
    92,490.86x = 8,466,985,112.57
  5. Step 5: Solve for x
    x = 8,466,985,112.57/92,490.86
  6. Step 6: Final answer
    x = 91,544.02

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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.