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Finding the Fourth Proportional to 185,516.64, 277,903.98 and 85,539.96

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Solution

The fourth proportional to 185,516.64, 277,903.98 and 85,539.96 is: 128,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,516.64 : 277,903.98 = 85,539.96 : x
  2. Step 2: Convert to fraction form
    185,516.64/277,903.98 = 85,539.96/x
  3. Step 3: Cross multiply
    185,516.64x = 277,903.98 × 85,539.96
  4. Step 4: Simplify right side
    185,516.64x = 23,771,895,333.04
  5. Step 5: Solve for x
    x = 23,771,895,333.04/185,516.64
  6. Step 6: Final answer
    x = 128,138.88

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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.