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Finding the Fourth Proportional to 204,672.90, 307,079.06 and 124,870.63

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Solution

The fourth proportional to 204,672.90, 307,079.06 and 124,870.63 is: 187,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,672.90 : 307,079.06 = 124,870.63 : x
  2. Step 2: Convert to fraction form
    204,672.90/307,079.06 = 124,870.63/x
  3. Step 3: Cross multiply
    204,672.90x = 307,079.06 × 124,870.63
  4. Step 4: Simplify right side
    204,672.90x = 38,345,155,682.01
  5. Step 5: Solve for x
    x = 38,345,155,682.01/204,672.90
  6. Step 6: Final answer
    x = 187,348.47

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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.