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Finding the Fourth Proportional to 132,254.88, 198,309.42 and 68,916.93

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Solution

The fourth proportional to 132,254.88, 198,309.42 and 68,916.93 is: 103,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,254.88 : 198,309.42 = 68,916.93 : x
  2. Step 2: Convert to fraction form
    132,254.88/198,309.42 = 68,916.93/x
  3. Step 3: Cross multiply
    132,254.88x = 198,309.42 × 68,916.93
  4. Step 4: Simplify right side
    132,254.88x = 13,666,876,416.48
  5. Step 5: Solve for x
    x = 13,666,876,416.48/132,254.88
  6. Step 6: Final answer
    x = 103,337.41

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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.