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Finding the Fourth Proportional to 71,661.80, 107,492.70 and 36,232.40

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Solution

The fourth proportional to 71,661.80, 107,492.70 and 36,232.40 is: 54,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,661.80 : 107,492.70 = 36,232.40 : x
  2. Step 2: Convert to fraction form
    71,661.80/107,492.70 = 36,232.40/x
  3. Step 3: Cross multiply
    71,661.80x = 107,492.70 × 36,232.40
  4. Step 4: Simplify right side
    71,661.80x = 3,894,718,503.48
  5. Step 5: Solve for x
    x = 3,894,718,503.48/71,661.80
  6. Step 6: Final answer
    x = 54,348.60

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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.