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Finding the Fourth Proportional to 453,157.48, 679,737.30 and 137,616.76

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Solution

The fourth proportional to 453,157.48, 679,737.30 and 137,616.76 is: 206,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,157.48 : 679,737.30 = 137,616.76 : x
  2. Step 2: Convert to fraction form
    453,157.48/679,737.30 = 137,616.76/x
  3. Step 3: Cross multiply
    453,157.48x = 679,737.30 × 137,616.76
  4. Step 4: Simplify right side
    453,157.48x = 93,543,244,877.15
  5. Step 5: Solve for x
    x = 93,543,244,877.15/453,157.48
  6. Step 6: Final answer
    x = 206,425.47

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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.