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Finding the Fourth Proportional to 124,894.53, 172,350.92 and 68,304.69

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Solution

The fourth proportional to 124,894.53, 172,350.92 and 68,304.69 is: 94,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,894.53 : 172,350.92 = 68,304.69 : x
  2. Step 2: Convert to fraction form
    124,894.53/172,350.92 = 68,304.69/x
  3. Step 3: Cross multiply
    124,894.53x = 172,350.92 × 68,304.69
  4. Step 4: Simplify right side
    124,894.53x = 11,772,376,332.58
  5. Step 5: Solve for x
    x = 11,772,376,332.58/124,894.53
  6. Step 6: Final answer
    x = 94,258.54

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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.