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Finding the Fourth Proportional to 107,793.12, 161,590.32 and 98,937.12

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Solution

The fourth proportional to 107,793.12, 161,590.32 and 98,937.12 is: 148,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,793.12 : 161,590.32 = 98,937.12 : x
  2. Step 2: Convert to fraction form
    107,793.12/161,590.32 = 98,937.12/x
  3. Step 3: Cross multiply
    107,793.12x = 161,590.32 × 98,937.12
  4. Step 4: Simplify right side
    107,793.12x = 15,987,280,880.68
  5. Step 5: Solve for x
    x = 15,987,280,880.68/107,793.12
  6. Step 6: Final answer
    x = 148,314.48

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1.5x scale

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.