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Finding the Fourth Proportional to 124,806.20, 187,209.30 and 124,806.20

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Solution

The fourth proportional to 124,806.20, 187,209.30 and 124,806.20 is: 187,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,806.20 : 187,209.30 = 124,806.20 : x
  2. Step 2: Convert to fraction form
    124,806.20/187,209.30 = 124,806.20/x
  3. Step 3: Cross multiply
    124,806.20x = 187,209.30 × 124,806.20
  4. Step 4: Simplify right side
    124,806.20x = 23,364,881,337.66
  5. Step 5: Solve for x
    x = 23,364,881,337.66/124,806.20
  6. Step 6: Final answer
    x = 187,209.30

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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.