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Finding the Fourth Proportional to 124,552.68, 186,687.43 and 109,530.50

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Solution

The fourth proportional to 124,552.68, 186,687.43 and 109,530.50 is: 164,171.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,552.68 : 186,687.43 = 109,530.50 : x
  2. Step 2: Convert to fraction form
    124,552.68/186,687.43 = 109,530.50/x
  3. Step 3: Cross multiply
    124,552.68x = 186,687.43 × 109,530.50
  4. Step 4: Simplify right side
    124,552.68x = 20,447,966,344.35
  5. Step 5: Solve for x
    x = 20,447,966,344.35/124,552.68
  6. Step 6: Final answer
    x = 164,171.23

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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.