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Finding the Fourth Proportional to 100,391.84, 150,539.31 and 58,282.52

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Solution

The fourth proportional to 100,391.84, 150,539.31 and 58,282.52 is: 87,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,391.84 : 150,539.31 = 58,282.52 : x
  2. Step 2: Convert to fraction form
    100,391.84/150,539.31 = 58,282.52/x
  3. Step 3: Cross multiply
    100,391.84x = 150,539.31 × 58,282.52
  4. Step 4: Simplify right side
    100,391.84x = 8,773,810,345.86
  5. Step 5: Solve for x
    x = 8,773,810,345.86/100,391.84
  6. Step 6: Final answer
    x = 87,395.65

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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.