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Finding the Fourth Proportional to 358,355.13, 537,157.86 and 133,617.80

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Solution

The fourth proportional to 358,355.13, 537,157.86 and 133,617.80 is: 200,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,355.13 : 537,157.86 = 133,617.80 : x
  2. Step 2: Convert to fraction form
    358,355.13/537,157.86 = 133,617.80/x
  3. Step 3: Cross multiply
    358,355.13x = 537,157.86 × 133,617.80
  4. Step 4: Simplify right side
    358,355.13x = 71,773,850,077.82
  5. Step 5: Solve for x
    x = 71,773,850,077.82/358,355.13
  6. Step 6: Final answer
    x = 200,286.93

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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.