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Finding the Fourth Proportional to 83,126.79, 124,707.72 and 26,962.53

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Solution

The fourth proportional to 83,126.79, 124,707.72 and 26,962.53 is: 40,449.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,126.79 : 124,707.72 = 26,962.53 : x
  2. Step 2: Convert to fraction form
    83,126.79/124,707.72 = 26,962.53/x
  3. Step 3: Cross multiply
    83,126.79x = 124,707.72 × 26,962.53
  4. Step 4: Simplify right side
    83,126.79x = 3,362,436,175.74
  5. Step 5: Solve for x
    x = 3,362,436,175.74/83,126.79
  6. Step 6: Final answer
    x = 40,449.49

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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.