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Finding the Fourth Proportional to 179,509.32, 247,713.20 and 98,920.80

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Solution

The fourth proportional to 179,509.32, 247,713.20 and 98,920.80 is: 136,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,509.32 : 247,713.20 = 98,920.80 : x
  2. Step 2: Convert to fraction form
    179,509.32/247,713.20 = 98,920.80/x
  3. Step 3: Cross multiply
    179,509.32x = 247,713.20 × 98,920.80
  4. Step 4: Simplify right side
    179,509.32x = 24,503,987,914.56
  5. Step 5: Solve for x
    x = 24,503,987,914.56/179,509.32
  6. Step 6: Final answer
    x = 136,505.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.