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Finding the Fourth Proportional to 185,592.90, 256,118.88 and 100,709.96

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Solution

The fourth proportional to 185,592.90, 256,118.88 and 100,709.96 is: 138,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,592.90 : 256,118.88 = 100,709.96 : x
  2. Step 2: Convert to fraction form
    185,592.90/256,118.88 = 100,709.96/x
  3. Step 3: Cross multiply
    185,592.90x = 256,118.88 × 100,709.96
  4. Step 4: Simplify right side
    185,592.90x = 25,793,720,375.90
  5. Step 5: Solve for x
    x = 25,793,720,375.90/185,592.90
  6. Step 6: Final answer
    x = 138,980.11

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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.