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Finding the Fourth Proportional to 124,129.67, 185,835.47 and 111,310.20

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Solution

The fourth proportional to 124,129.67, 185,835.47 and 111,310.20 is: 166,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129.67 : 185,835.47 = 111,310.20 : x
  2. Step 2: Convert to fraction form
    124,129.67/185,835.47 = 111,310.20/x
  3. Step 3: Cross multiply
    124,129.67x = 185,835.47 × 111,310.20
  4. Step 4: Simplify right side
    124,129.67x = 20,685,382,776.24
  5. Step 5: Solve for x
    x = 20,685,382,776.24/124,129.67
  6. Step 6: Final answer
    x = 166,643.35

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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.