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Finding the Fourth Proportional to 148,662.92, 205,141.08 and 88,223.12

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Solution

The fourth proportional to 148,662.92, 205,141.08 and 88,223.12 is: 121,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,662.92 : 205,141.08 = 88,223.12 : x
  2. Step 2: Convert to fraction form
    148,662.92/205,141.08 = 88,223.12/x
  3. Step 3: Cross multiply
    148,662.92x = 205,141.08 × 88,223.12
  4. Step 4: Simplify right side
    148,662.92x = 18,098,186,117.77
  5. Step 5: Solve for x
    x = 18,098,186,117.77/148,662.92
  6. Step 6: Final answer
    x = 121,739.75

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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.