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Finding the Fourth Proportional to 124,436.72, 171,717.36 and 67,848.32

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Solution

The fourth proportional to 124,436.72, 171,717.36 and 67,848.32 is: 93,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,436.72 : 171,717.36 = 67,848.32 : x
  2. Step 2: Convert to fraction form
    124,436.72/171,717.36 = 67,848.32/x
  3. Step 3: Cross multiply
    124,436.72x = 171,717.36 × 67,848.32
  4. Step 4: Simplify right side
    124,436.72x = 11,650,734,390.84
  5. Step 5: Solve for x
    x = 11,650,734,390.84/124,436.72
  6. Step 6: Final answer
    x = 93,627.78

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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.