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Finding the Fourth Proportional to 124,258.75, 171,493.28 and 73,957.75

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Solution

The fourth proportional to 124,258.75, 171,493.28 and 73,957.75 is: 102,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,258.75 : 171,493.28 = 73,957.75 : x
  2. Step 2: Convert to fraction form
    124,258.75/171,493.28 = 73,957.75/x
  3. Step 3: Cross multiply
    124,258.75x = 171,493.28 × 73,957.75
  4. Step 4: Simplify right side
    124,258.75x = 12,683,257,128.92
  5. Step 5: Solve for x
    x = 12,683,257,128.92/124,258.75
  6. Step 6: Final answer
    x = 102,071.34

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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.