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Finding the Fourth Proportional to 124,065.54, 171,209.96 and 67,477.86

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Solution

The fourth proportional to 124,065.54, 171,209.96 and 67,477.86 is: 93,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,065.54 : 171,209.96 = 67,477.86 : x
  2. Step 2: Convert to fraction form
    124,065.54/171,209.96 = 67,477.86/x
  3. Step 3: Cross multiply
    124,065.54x = 171,209.96 × 67,477.86
  4. Step 4: Simplify right side
    124,065.54x = 11,552,881,711.49
  5. Step 5: Solve for x
    x = 11,552,881,711.49/124,065.54
  6. Step 6: Final answer
    x = 93,119.18

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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.