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Finding the Fourth Proportional to 185,063.89, 277,538.46 and 66,719.92

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Solution

The fourth proportional to 185,063.89, 277,538.46 and 66,719.92 is: 100,059.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,063.89 : 277,538.46 = 66,719.92 : x
  2. Step 2: Convert to fraction form
    185,063.89/277,538.46 = 66,719.92/x
  3. Step 3: Cross multiply
    185,063.89x = 277,538.46 × 66,719.92
  4. Step 4: Simplify right side
    185,063.89x = 18,517,343,848.12
  5. Step 5: Solve for x
    x = 18,517,343,848.12/185,063.89
  6. Step 6: Final answer
    x = 100,059.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.