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Finding the Fourth Proportional to 124,601.60, 171,944.16 and 68,009.60

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Solution

The fourth proportional to 124,601.60, 171,944.16 and 68,009.60 is: 93,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,601.60 : 171,944.16 = 68,009.60 : x
  2. Step 2: Convert to fraction form
    124,601.60/171,944.16 = 68,009.60/x
  3. Step 3: Cross multiply
    124,601.60x = 171,944.16 × 68,009.60
  4. Step 4: Simplify right side
    124,601.60x = 11,693,853,543.94
  5. Step 5: Solve for x
    x = 11,693,853,543.94/124,601.60
  6. Step 6: Final answer
    x = 93,849.95

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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.