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Finding the Fourth Proportional to 124,607.15, 171,956.99 and 68,018.52

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Solution

The fourth proportional to 124,607.15, 171,956.99 and 68,018.52 is: 93,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,607.15 : 171,956.99 = 68,018.52 : x
  2. Step 2: Convert to fraction form
    124,607.15/171,956.99 = 68,018.52/x
  3. Step 3: Cross multiply
    124,607.15x = 171,956.99 × 68,018.52
  4. Step 4: Simplify right side
    124,607.15x = 11,696,259,963.45
  5. Step 5: Solve for x
    x = 11,696,259,963.45/124,607.15
  6. Step 6: Final answer
    x = 93,865.08

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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.