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Finding the Fourth Proportional to 124,322.90, 171,564 and 67,734.32

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Solution

The fourth proportional to 124,322.90, 171,564 and 67,734.32 is: 93,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,322.90 : 171,564 = 67,734.32 : x
  2. Step 2: Convert to fraction form
    124,322.90/171,564 = 67,734.32/x
  3. Step 3: Cross multiply
    124,322.90x = 171,564 × 67,734.32
  4. Step 4: Simplify right side
    124,322.90x = 11,620,770,876.48
  5. Step 5: Solve for x
    x = 11,620,770,876.48/124,322.90
  6. Step 6: Final answer
    x = 93,472.49

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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.