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Finding the Fourth Proportional to 124,387.75, 171,655.22 and 67,799.35

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Solution

The fourth proportional to 124,387.75, 171,655.22 and 67,799.35 is: 93,563.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,387.75 : 171,655.22 = 67,799.35 : x
  2. Step 2: Convert to fraction form
    124,387.75/171,655.22 = 67,799.35/x
  3. Step 3: Cross multiply
    124,387.75x = 171,655.22 × 67,799.35
  4. Step 4: Simplify right side
    124,387.75x = 11,638,112,001.11
  5. Step 5: Solve for x
    x = 11,638,112,001.11/124,387.75
  6. Step 6: Final answer
    x = 93,563.17

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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.