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Finding the Fourth Proportional to 254,878.11, 351,750.20 and 141,717.87

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Solution

The fourth proportional to 254,878.11, 351,750.20 and 141,717.87 is: 195,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,878.11 : 351,750.20 = 141,717.87 : x
  2. Step 2: Convert to fraction form
    254,878.11/351,750.20 = 141,717.87/x
  3. Step 3: Cross multiply
    254,878.11x = 351,750.20 × 141,717.87
  4. Step 4: Simplify right side
    254,878.11x = 49,849,288,407.48
  5. Step 5: Solve for x
    x = 49,849,288,407.48/254,878.11
  6. Step 6: Final answer
    x = 195,580.89

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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.