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Finding the Fourth Proportional to 112,016.96, 154,583.34 and 61,715.96

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Solution

The fourth proportional to 112,016.96, 154,583.34 and 61,715.96 is: 85,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016.96 : 154,583.34 = 61,715.96 : x
  2. Step 2: Convert to fraction form
    112,016.96/154,583.34 = 61,715.96/x
  3. Step 3: Cross multiply
    112,016.96x = 154,583.34 × 61,715.96
  4. Step 4: Simplify right side
    112,016.96x = 9,540,258,803.44
  5. Step 5: Solve for x
    x = 9,540,258,803.44/112,016.96
  6. Step 6: Final answer
    x = 85,167.99

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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.