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Finding the Fourth Proportional to 71,152.40, 106,588.20 and 36,117.20

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Solution

The fourth proportional to 71,152.40, 106,588.20 and 36,117.20 is: 54,104.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,152.40 : 106,588.20 = 36,117.20 : x
  2. Step 2: Convert to fraction form
    71,152.40/106,588.20 = 36,117.20/x
  3. Step 3: Cross multiply
    71,152.40x = 106,588.20 × 36,117.20
  4. Step 4: Simplify right side
    71,152.40x = 3,849,667,337.04
  5. Step 5: Solve for x
    x = 3,849,667,337.04/71,152.40
  6. Step 6: Final answer
    x = 54,104.53

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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.