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Finding the Fourth Proportional to 124,433.01, 171,581.90 and 84,076.58

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Solution

The fourth proportional to 124,433.01, 171,581.90 and 84,076.58 is: 115,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,433.01 : 171,581.90 = 84,076.58 : x
  2. Step 2: Convert to fraction form
    124,433.01/171,581.90 = 84,076.58/x
  3. Step 3: Cross multiply
    124,433.01x = 171,581.90 × 84,076.58
  4. Step 4: Simplify right side
    124,433.01x = 14,426,019,350.47
  5. Step 5: Solve for x
    x = 14,426,019,350.47/124,433.01
  6. Step 6: Final answer
    x = 115,934.02

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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.