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Finding the Fourth Proportional to 111,808.75, 154,298.88 and 60,824.35

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Solution

The fourth proportional to 111,808.75, 154,298.88 and 60,824.35 is: 83,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,808.75 : 154,298.88 = 60,824.35 : x
  2. Step 2: Convert to fraction form
    111,808.75/154,298.88 = 60,824.35/x
  3. Step 3: Cross multiply
    111,808.75x = 154,298.88 × 60,824.35
  4. Step 4: Simplify right side
    111,808.75x = 9,385,129,081.73
  5. Step 5: Solve for x
    x = 9,385,129,081.73/111,808.75
  6. Step 6: Final answer
    x = 83,939.13

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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.