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Finding the Fourth Proportional to 127,648.46, 176,178.50 and 73,933.46

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Solution

The fourth proportional to 127,648.46, 176,178.50 and 73,933.46 is: 102,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,648.46 : 176,178.50 = 73,933.46 : x
  2. Step 2: Convert to fraction form
    127,648.46/176,178.50 = 73,933.46/x
  3. Step 3: Cross multiply
    127,648.46x = 176,178.50 × 73,933.46
  4. Step 4: Simplify right side
    127,648.46x = 13,025,486,082.61
  5. Step 5: Solve for x
    x = 13,025,486,082.61/127,648.46
  6. Step 6: Final answer
    x = 102,041.86

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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.