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Finding the Fourth Proportional to 124,170.76, 171,355.64 and 67,582.54

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Solution

The fourth proportional to 124,170.76, 171,355.64 and 67,582.54 is: 93,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,170.76 : 171,355.64 = 67,582.54 : x
  2. Step 2: Convert to fraction form
    124,170.76/171,355.64 = 67,582.54/x
  3. Step 3: Cross multiply
    124,170.76x = 171,355.64 × 67,582.54
  4. Step 4: Simplify right side
    124,170.76x = 11,580,649,394.53
  5. Step 5: Solve for x
    x = 11,580,649,394.53/124,170.76
  6. Step 6: Final answer
    x = 93,263.90

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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.