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Finding the Fourth Proportional to 357,765.92, 536,643.41 and 91,524.18

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Solution

The fourth proportional to 357,765.92, 536,643.41 and 91,524.18 is: 137,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,765.92 : 536,643.41 = 91,524.18 : x
  2. Step 2: Convert to fraction form
    357,765.92/536,643.41 = 91,524.18/x
  3. Step 3: Cross multiply
    357,765.92x = 536,643.41 × 91,524.18
  4. Step 4: Simplify right side
    357,765.92x = 49,115,847,595.03
  5. Step 5: Solve for x
    x = 49,115,847,595.03/357,765.92
  6. Step 6: Final answer
    x = 137,284.87

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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.