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Finding the Fourth Proportional to 453,165.26, 679,703.71 and 137,624.90

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Solution

The fourth proportional to 453,165.26, 679,703.71 and 137,624.90 is: 206,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,165.26 : 679,703.71 = 137,624.90 : x
  2. Step 2: Convert to fraction form
    453,165.26/679,703.71 = 137,624.90/x
  3. Step 3: Cross multiply
    453,165.26x = 679,703.71 × 137,624.90
  4. Step 4: Simplify right side
    453,165.26x = 93,544,155,118.38
  5. Step 5: Solve for x
    x = 93,544,155,118.38/453,165.26
  6. Step 6: Final answer
    x = 206,423.93

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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.