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Finding the Fourth Proportional to 204,750.90, 307,126.35 and 104,877.90

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Solution

The fourth proportional to 204,750.90, 307,126.35 and 104,877.90 is: 157,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,750.90 : 307,126.35 = 104,877.90 : x
  2. Step 2: Convert to fraction form
    204,750.90/307,126.35 = 104,877.90/x
  3. Step 3: Cross multiply
    204,750.90x = 307,126.35 × 104,877.90
  4. Step 4: Simplify right side
    204,750.90x = 32,210,766,622.67
  5. Step 5: Solve for x
    x = 32,210,766,622.67/204,750.90
  6. Step 6: Final answer
    x = 157,316.85

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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.