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Finding the Fourth Proportional to 91,191.92, 136,812.96 and 32,019.76

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Solution

The fourth proportional to 91,191.92, 136,812.96 and 32,019.76 is: 48,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,191.92 : 136,812.96 = 32,019.76 : x
  2. Step 2: Convert to fraction form
    91,191.92/136,812.96 = 32,019.76/x
  3. Step 3: Cross multiply
    91,191.92x = 136,812.96 × 32,019.76
  4. Step 4: Simplify right side
    91,191.92x = 4,380,718,144.09
  5. Step 5: Solve for x
    x = 4,380,718,144.09/91,191.92
  6. Step 6: Final answer
    x = 48,038.45

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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.