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Finding the Fourth Proportional to 124,718.40, 187,101.90 and 49,825.80

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Solution

The fourth proportional to 124,718.40, 187,101.90 and 49,825.80 is: 74,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,718.40 : 187,101.90 = 49,825.80 : x
  2. Step 2: Convert to fraction form
    124,718.40/187,101.90 = 49,825.80/x
  3. Step 3: Cross multiply
    124,718.40x = 187,101.90 × 49,825.80
  4. Step 4: Simplify right side
    124,718.40x = 9,322,501,849.02
  5. Step 5: Solve for x
    x = 9,322,501,849.02/124,718.40
  6. Step 6: Final answer
    x = 74,748.41

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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.