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Finding the Fourth Proportional to 124,309.68, 186,469.14 and 40,071.06

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Solution

The fourth proportional to 124,309.68, 186,469.14 and 40,071.06 is: 60,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,309.68 : 186,469.14 = 40,071.06 : x
  2. Step 2: Convert to fraction form
    124,309.68/186,469.14 = 40,071.06/x
  3. Step 3: Cross multiply
    124,309.68x = 186,469.14 × 40,071.06
  4. Step 4: Simplify right side
    124,309.68x = 7,472,016,097.09
  5. Step 5: Solve for x
    x = 7,472,016,097.09/124,309.68
  6. Step 6: Final answer
    x = 60,108.08

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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.