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Finding the Fourth Proportional to 407,002.44, 610,510.54 and 140,769.88

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Solution

The fourth proportional to 407,002.44, 610,510.54 and 140,769.88 is: 211,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,002.44 : 610,510.54 = 140,769.88 : x
  2. Step 2: Convert to fraction form
    407,002.44/610,510.54 = 140,769.88/x
  3. Step 3: Cross multiply
    407,002.44x = 610,510.54 × 140,769.88
  4. Step 4: Simplify right side
    407,002.44x = 85,941,495,454.54
  5. Step 5: Solve for x
    x = 85,941,495,454.54/407,002.44
  6. Step 6: Final answer
    x = 211,157.20

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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.