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Finding the Fourth Proportional to 119,603.65, 165,041.67 and 68,620.58

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Solution

The fourth proportional to 119,603.65, 165,041.67 and 68,620.58 is: 94,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,603.65 : 165,041.67 = 68,620.58 : x
  2. Step 2: Convert to fraction form
    119,603.65/165,041.67 = 68,620.58/x
  3. Step 3: Cross multiply
    119,603.65x = 165,041.67 × 68,620.58
  4. Step 4: Simplify right side
    119,603.65x = 11,325,254,294.36
  5. Step 5: Solve for x
    x = 11,325,254,294.36/119,603.65
  6. Step 6: Final answer
    x = 94,689.87

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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.