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Finding the Fourth Proportional to 453,267.66, 679,788.45 and 133,355.87

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Solution

The fourth proportional to 453,267.66, 679,788.45 and 133,355.87 is: 200,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,267.66 : 679,788.45 = 133,355.87 : x
  2. Step 2: Convert to fraction form
    453,267.66/679,788.45 = 133,355.87/x
  3. Step 3: Cross multiply
    453,267.66x = 679,788.45 × 133,355.87
  4. Step 4: Simplify right side
    453,267.66x = 90,653,779,315.97
  5. Step 5: Solve for x
    x = 90,653,779,315.97/453,267.66
  6. Step 6: Final answer
    x = 200,000.54

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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.