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Finding the Fourth Proportional to 112,243.92, 154,895.60 and 61,257.64

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Solution

The fourth proportional to 112,243.92, 154,895.60 and 61,257.64 is: 84,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,243.92 : 154,895.60 = 61,257.64 : x
  2. Step 2: Convert to fraction form
    112,243.92/154,895.60 = 61,257.64/x
  3. Step 3: Cross multiply
    112,243.92x = 154,895.60 × 61,257.64
  4. Step 4: Simplify right side
    112,243.92x = 9,488,538,902.38
  5. Step 5: Solve for x
    x = 9,488,538,902.38/112,243.92
  6. Step 6: Final answer
    x = 84,534.99

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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.