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Finding the Fourth Proportional to 453,029.76, 679,570.56 and 137,496.96

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Solution

The fourth proportional to 453,029.76, 679,570.56 and 137,496.96 is: 206,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,029.76 : 679,570.56 = 137,496.96 : x
  2. Step 2: Convert to fraction form
    453,029.76/679,570.56 = 137,496.96/x
  3. Step 3: Cross multiply
    453,029.76x = 679,570.56 × 137,496.96
  4. Step 4: Simplify right side
    453,029.76x = 93,438,886,105.50
  5. Step 5: Solve for x
    x = 93,438,886,105.50/453,029.76
  6. Step 6: Final answer
    x = 206,253.31

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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.