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Finding the Fourth Proportional to 124,306.95, 171,544.71 and 67,718.32

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Solution

The fourth proportional to 124,306.95, 171,544.71 and 67,718.32 is: 93,451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,306.95 : 171,544.71 = 67,718.32 : x
  2. Step 2: Convert to fraction form
    124,306.95/171,544.71 = 67,718.32/x
  3. Step 3: Cross multiply
    124,306.95x = 171,544.71 × 67,718.32
  4. Step 4: Simplify right side
    124,306.95x = 11,616,719,566.09
  5. Step 5: Solve for x
    x = 11,616,719,566.09/124,306.95
  6. Step 6: Final answer
    x = 93,451.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.