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Finding the Fourth Proportional to 119,689.58, 179,479.19 and 35,419.61

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Solution

The fourth proportional to 119,689.58, 179,479.19 and 35,419.61 is: 53,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,689.58 : 179,479.19 = 35,419.61 : x
  2. Step 2: Convert to fraction form
    119,689.58/179,479.19 = 35,419.61/x
  3. Step 3: Cross multiply
    119,689.58x = 179,479.19 × 35,419.61
  4. Step 4: Simplify right side
    119,689.58x = 6,357,083,450.16
  5. Step 5: Solve for x
    x = 6,357,083,450.16/119,689.58
  6. Step 6: Final answer
    x = 53,113.09

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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.