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Finding the Fourth Proportional to 250,502.40, 345,706.56 and 137,329.92

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Solution

The fourth proportional to 250,502.40, 345,706.56 and 137,329.92 is: 189,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,502.40 : 345,706.56 = 137,329.92 : x
  2. Step 2: Convert to fraction form
    250,502.40/345,706.56 = 137,329.92/x
  3. Step 3: Cross multiply
    250,502.40x = 345,706.56 × 137,329.92
  4. Step 4: Simplify right side
    250,502.40x = 47,475,854,228.28
  5. Step 5: Solve for x
    x = 47,475,854,228.28/250,502.40
  6. Step 6: Final answer
    x = 189,522.55

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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.