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Finding the Fourth Proportional to 250,502.30, 345,715.04 and 137,346.92

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Solution

The fourth proportional to 250,502.30, 345,715.04 and 137,346.92 is: 189,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,502.30 : 345,715.04 = 137,346.92 : x
  2. Step 2: Convert to fraction form
    250,502.30/345,715.04 = 137,346.92/x
  3. Step 3: Cross multiply
    250,502.30x = 345,715.04 × 137,346.92
  4. Step 4: Simplify right side
    250,502.30x = 47,482,895,941.68
  5. Step 5: Solve for x
    x = 47,482,895,941.68/250,502.30
  6. Step 6: Final answer
    x = 189,550.74

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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.