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Finding the Fourth Proportional to 122,951.84, 169,671.66 and 69,236.72

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Solution

The fourth proportional to 122,951.84, 169,671.66 and 69,236.72 is: 95,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,951.84 : 169,671.66 = 69,236.72 : x
  2. Step 2: Convert to fraction form
    122,951.84/169,671.66 = 69,236.72/x
  3. Step 3: Cross multiply
    122,951.84x = 169,671.66 × 69,236.72
  4. Step 4: Simplify right side
    122,951.84x = 11,747,509,215.36
  5. Step 5: Solve for x
    x = 11,747,509,215.36/122,951.84
  6. Step 6: Final answer
    x = 95,545.62

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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.