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Finding the Fourth Proportional to 173,976.40, 261,000.60 and 99,132.40

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Solution

The fourth proportional to 173,976.40, 261,000.60 and 99,132.40 is: 148,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,976.40 : 261,000.60 = 99,132.40 : x
  2. Step 2: Convert to fraction form
    173,976.40/261,000.60 = 99,132.40/x
  3. Step 3: Cross multiply
    173,976.40x = 261,000.60 × 99,132.40
  4. Step 4: Simplify right side
    173,976.40x = 25,873,615,879.44
  5. Step 5: Solve for x
    x = 25,873,615,879.44/173,976.40
  6. Step 6: Final answer
    x = 148,719.11

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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.