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Finding the Fourth Proportional to 250,853.55, 376,391.49 and 101,385.87

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Solution

The fourth proportional to 250,853.55, 376,391.49 and 101,385.87 is: 152,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,853.55 : 376,391.49 = 101,385.87 : x
  2. Step 2: Convert to fraction form
    250,853.55/376,391.49 = 101,385.87/x
  3. Step 3: Cross multiply
    250,853.55x = 376,391.49 × 101,385.87
  4. Step 4: Simplify right side
    250,853.55x = 38,160,778,674.25
  5. Step 5: Solve for x
    x = 38,160,778,674.25/250,853.55
  6. Step 6: Final answer
    x = 152,123.73

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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.