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Finding the Fourth Proportional to 173,680.48, 239,724.12 and 98,272.72

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Solution

The fourth proportional to 173,680.48, 239,724.12 and 98,272.72 is: 135,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,680.48 : 239,724.12 = 98,272.72 : x
  2. Step 2: Convert to fraction form
    173,680.48/239,724.12 = 98,272.72/x
  3. Step 3: Cross multiply
    173,680.48x = 239,724.12 × 98,272.72
  4. Step 4: Simplify right side
    173,680.48x = 23,558,341,322.01
  5. Step 5: Solve for x
    x = 23,558,341,322.01/173,680.48
  6. Step 6: Final answer
    x = 135,641.85

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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.