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Finding the Fourth Proportional to 122,144.59, 168,569.40 and 68,441.59

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Solution

The fourth proportional to 122,144.59, 168,569.40 and 68,441.59 is: 94,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,144.59 : 168,569.40 = 68,441.59 : x
  2. Step 2: Convert to fraction form
    122,144.59/168,569.40 = 68,441.59/x
  3. Step 3: Cross multiply
    122,144.59x = 168,569.40 × 68,441.59
  4. Step 4: Simplify right side
    122,144.59x = 11,537,157,761.35
  5. Step 5: Solve for x
    x = 11,537,157,761.35/122,144.59
  6. Step 6: Final answer
    x = 94,454.92

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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.