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Finding the Fourth Proportional to 363,139.70, 544,515.15 and 152,539.70

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Solution

The fourth proportional to 363,139.70, 544,515.15 and 152,539.70 is: 228,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,139.70 : 544,515.15 = 152,539.70 : x
  2. Step 2: Convert to fraction form
    363,139.70/544,515.15 = 152,539.70/x
  3. Step 3: Cross multiply
    363,139.70x = 544,515.15 × 152,539.70
  4. Step 4: Simplify right side
    363,139.70x = 83,060,177,626.46
  5. Step 5: Solve for x
    x = 83,060,177,626.46/363,139.70
  6. Step 6: Final answer
    x = 228,727.89

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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.