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Finding the Fourth Proportional to 124,210.50, 171,410.90 and 67,622.28

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Solution

The fourth proportional to 124,210.50, 171,410.90 and 67,622.28 is: 93,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,210.50 : 171,410.90 = 67,622.28 : x
  2. Step 2: Convert to fraction form
    124,210.50/171,410.90 = 67,622.28/x
  3. Step 3: Cross multiply
    124,210.50x = 171,410.90 × 67,622.28
  4. Step 4: Simplify right side
    124,210.50x = 11,591,195,536.74
  5. Step 5: Solve for x
    x = 11,591,195,536.74/124,210.50
  6. Step 6: Final answer
    x = 93,318.97

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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.