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Finding the Fourth Proportional to 144,275.96, 215,872.65 and 119,327.76

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Solution

The fourth proportional to 144,275.96, 215,872.65 and 119,327.76 is: 178,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,275.96 : 215,872.65 = 119,327.76 : x
  2. Step 2: Convert to fraction form
    144,275.96/215,872.65 = 119,327.76/x
  3. Step 3: Cross multiply
    144,275.96x = 215,872.65 × 119,327.76
  4. Step 4: Simplify right side
    144,275.96x = 25,759,599,769.76
  5. Step 5: Solve for x
    x = 25,759,599,769.76/144,275.96
  6. Step 6: Final answer
    x = 178,543.95

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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.