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Finding the Fourth Proportional to 112,016.74, 154,583.02 and 61,715.74

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Solution

The fourth proportional to 112,016.74, 154,583.02 and 61,715.74 is: 85,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016.74 : 154,583.02 = 61,715.74 : x
  2. Step 2: Convert to fraction form
    112,016.74/154,583.02 = 61,715.74/x
  3. Step 3: Cross multiply
    112,016.74x = 154,583.02 × 61,715.74
  4. Step 4: Simplify right side
    112,016.74x = 9,540,205,470.73
  5. Step 5: Solve for x
    x = 9,540,205,470.73/112,016.74
  6. Step 6: Final answer
    x = 85,167.68

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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.