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Finding the Fourth Proportional to 482,657.44, 724,080.53 and 145,725.52

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Solution

The fourth proportional to 482,657.44, 724,080.53 and 145,725.52 is: 218,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,657.44 : 724,080.53 = 145,725.52 : x
  2. Step 2: Convert to fraction form
    482,657.44/724,080.53 = 145,725.52/x
  3. Step 3: Cross multiply
    482,657.44x = 724,080.53 × 145,725.52
  4. Step 4: Simplify right side
    482,657.44x = 105,517,011,756.13
  5. Step 5: Solve for x
    x = 105,517,011,756.13/482,657.44
  6. Step 6: Final answer
    x = 218,616.77

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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.