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Finding the Fourth Proportional to 254,139.88, 350,710.50 and 140,959.72

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Solution

The fourth proportional to 254,139.88, 350,710.50 and 140,959.72 is: 194,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,139.88 : 350,710.50 = 140,959.72 : x
  2. Step 2: Convert to fraction form
    254,139.88/350,710.50 = 140,959.72/x
  3. Step 3: Cross multiply
    254,139.88x = 350,710.50 × 140,959.72
  4. Step 4: Simplify right side
    254,139.88x = 49,436,053,881.06
  5. Step 5: Solve for x
    x = 49,436,053,881.06/254,139.88
  6. Step 6: Final answer
    x = 194,523.01

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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.