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Finding the Fourth Proportional to 185,691.38, 256,312.44 and 118,623.38

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Solution

The fourth proportional to 185,691.38, 256,312.44 and 118,623.38 is: 163,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,691.38 : 256,312.44 = 118,623.38 : x
  2. Step 2: Convert to fraction form
    185,691.38/256,312.44 = 118,623.38/x
  3. Step 3: Cross multiply
    185,691.38x = 256,312.44 × 118,623.38
  4. Step 4: Simplify right side
    185,691.38x = 30,404,646,687.29
  5. Step 5: Solve for x
    x = 30,404,646,687.29/185,691.38
  6. Step 6: Final answer
    x = 163,737.53

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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.