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Finding the Fourth Proportional to 112,294.29, 154,959.48 and 61,296.87

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Solution

The fourth proportional to 112,294.29, 154,959.48 and 61,296.87 is: 84,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,294.29 : 154,959.48 = 61,296.87 : x
  2. Step 2: Convert to fraction form
    112,294.29/154,959.48 = 61,296.87/x
  3. Step 3: Cross multiply
    112,294.29x = 154,959.48 × 61,296.87
  4. Step 4: Simplify right side
    112,294.29x = 9,498,531,100.83
  5. Step 5: Solve for x
    x = 9,498,531,100.83/112,294.29
  6. Step 6: Final answer
    x = 84,586.06

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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.