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Finding the Fourth Proportional to 122,593.50, 169,177.86 and 68,144.24

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Solution

The fourth proportional to 122,593.50, 169,177.86 and 68,144.24 is: 94,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,593.50 : 169,177.86 = 68,144.24 : x
  2. Step 2: Convert to fraction form
    122,593.50/169,177.86 = 68,144.24/x
  3. Step 3: Cross multiply
    122,593.50x = 169,177.86 × 68,144.24
  4. Step 4: Simplify right side
    122,593.50x = 11,528,496,694.53
  5. Step 5: Solve for x
    x = 11,528,496,694.53/122,593.50
  6. Step 6: Final answer
    x = 94,038.40

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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.