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Finding the Fourth Proportional to 124,652.88, 171,961.14 and 90,608.58

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Solution

The fourth proportional to 124,652.88, 171,961.14 and 90,608.58 is: 124,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,652.88 : 171,961.14 = 90,608.58 : x
  2. Step 2: Convert to fraction form
    124,652.88/171,961.14 = 90,608.58/x
  3. Step 3: Cross multiply
    124,652.88x = 171,961.14 × 90,608.58
  4. Step 4: Simplify right side
    124,652.88x = 15,581,154,710.58
  5. Step 5: Solve for x
    x = 15,581,154,710.58/124,652.88
  6. Step 6: Final answer
    x = 124,996.35

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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.