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Finding the Fourth Proportional to 124,606.16, 171,956.45 and 68,017.54

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Solution

The fourth proportional to 124,606.16, 171,956.45 and 68,017.54 is: 93,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,606.16 : 171,956.45 = 68,017.54 : x
  2. Step 2: Convert to fraction form
    124,606.16/171,956.45 = 68,017.54/x
  3. Step 3: Cross multiply
    124,606.16x = 171,956.45 × 68,017.54
  4. Step 4: Simplify right side
    124,606.16x = 11,696,053,856.35
  5. Step 5: Solve for x
    x = 11,696,053,856.35/124,606.16
  6. Step 6: Final answer
    x = 93,864.17

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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.