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Finding the Fourth Proportional to 482,656.44, 724,079.03 and 145,724.52

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Solution

The fourth proportional to 482,656.44, 724,079.03 and 145,724.52 is: 218,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,656.44 : 724,079.03 = 145,724.52 : x
  2. Step 2: Convert to fraction form
    482,656.44/724,079.03 = 145,724.52/x
  3. Step 3: Cross multiply
    482,656.44x = 724,079.03 × 145,724.52
  4. Step 4: Simplify right side
    482,656.44x = 105,516,068,360.19
  5. Step 5: Solve for x
    x = 105,516,068,360.19/482,656.44
  6. Step 6: Final answer
    x = 218,615.27

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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.