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Finding the Fourth Proportional to 453,044.80, 679,567.20 and 137,501.20

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Solution

The fourth proportional to 453,044.80, 679,567.20 and 137,501.20 is: 206,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,044.80 : 679,567.20 = 137,501.20 : x
  2. Step 2: Convert to fraction form
    453,044.80/679,567.20 = 137,501.20/x
  3. Step 3: Cross multiply
    453,044.80x = 679,567.20 × 137,501.20
  4. Step 4: Simplify right side
    453,044.80x = 93,441,305,480.64
  5. Step 5: Solve for x
    x = 93,441,305,480.64/453,044.80
  6. Step 6: Final answer
    x = 206,251.80

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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.