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Finding the Fourth Proportional to 127,141.76, 175,463.83 and 70,553.13

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Solution

The fourth proportional to 127,141.76, 175,463.83 and 70,553.13 is: 97,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,141.76 : 175,463.83 = 70,553.13 : x
  2. Step 2: Convert to fraction form
    127,141.76/175,463.83 = 70,553.13/x
  3. Step 3: Cross multiply
    127,141.76x = 175,463.83 × 70,553.13
  4. Step 4: Simplify right side
    127,141.76x = 12,379,522,408.29
  5. Step 5: Solve for x
    x = 12,379,522,408.29/127,141.76
  6. Step 6: Final answer
    x = 97,367.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.