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Finding the Fourth Proportional to 148,613.92, 222,997.32 and 98,728.48

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Solution

The fourth proportional to 148,613.92, 222,997.32 and 98,728.48 is: 148,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,613.92 : 222,997.32 = 98,728.48 : x
  2. Step 2: Convert to fraction form
    148,613.92/222,997.32 = 98,728.48/x
  3. Step 3: Cross multiply
    148,613.92x = 222,997.32 × 98,728.48
  4. Step 4: Simplify right side
    148,613.92x = 22,016,186,447.67
  5. Step 5: Solve for x
    x = 22,016,186,447.67/148,613.92
  6. Step 6: Final answer
    x = 148,143.50

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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.