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Finding the Fourth Proportional to 91,432.60, 137,148.90 and 44,776.60

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Solution

The fourth proportional to 91,432.60, 137,148.90 and 44,776.60 is: 67,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,432.60 : 137,148.90 = 44,776.60 : x
  2. Step 2: Convert to fraction form
    91,432.60/137,148.90 = 44,776.60/x
  3. Step 3: Cross multiply
    91,432.60x = 137,148.90 × 44,776.60
  4. Step 4: Simplify right side
    91,432.60x = 6,141,061,435.74
  5. Step 5: Solve for x
    x = 6,141,061,435.74/91,432.60
  6. Step 6: Final answer
    x = 67,164.90

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1.5x scale

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.