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Finding the Fourth Proportional to 101,449.79, 152,050.05 and 56,983.07

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Solution

The fourth proportional to 101,449.79, 152,050.05 and 56,983.07 is: 85,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,449.79 : 152,050.05 = 56,983.07 : x
  2. Step 2: Convert to fraction form
    101,449.79/152,050.05 = 56,983.07/x
  3. Step 3: Cross multiply
    101,449.79x = 152,050.05 × 56,983.07
  4. Step 4: Simplify right side
    101,449.79x = 8,664,278,642.65
  5. Step 5: Solve for x
    x = 8,664,278,642.65/101,449.79
  6. Step 6: Final answer
    x = 85,404.60

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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.