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Finding the Fourth Proportional to 73,251.40, 109,877.10 and 72,473.80

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Solution

The fourth proportional to 73,251.40, 109,877.10 and 72,473.80 is: 108,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,251.40 : 109,877.10 = 72,473.80 : x
  2. Step 2: Convert to fraction form
    73,251.40/109,877.10 = 72,473.80/x
  3. Step 3: Cross multiply
    73,251.40x = 109,877.10 × 72,473.80
  4. Step 4: Simplify right side
    73,251.40x = 7,963,210,969.98
  5. Step 5: Solve for x
    x = 7,963,210,969.98/73,251.40
  6. Step 6: Final answer
    x = 108,710.70

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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.