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Finding the Fourth Proportional to 119,872.08, 179,808.16 and 40,987.04

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Solution

The fourth proportional to 119,872.08, 179,808.16 and 40,987.04 is: 61,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,872.08 : 179,808.16 = 40,987.04 : x
  2. Step 2: Convert to fraction form
    119,872.08/179,808.16 = 40,987.04/x
  3. Step 3: Cross multiply
    119,872.08x = 179,808.16 × 40,987.04
  4. Step 4: Simplify right side
    119,872.08x = 7,369,804,246.25
  5. Step 5: Solve for x
    x = 7,369,804,246.25/119,872.08
  6. Step 6: Final answer
    x = 61,480.57

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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.