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Finding the Fourth Proportional to 125,859.47, 173,682.77 and 68,499.90

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Solution

The fourth proportional to 125,859.47, 173,682.77 and 68,499.90 is: 94,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,859.47 : 173,682.77 = 68,499.90 : x
  2. Step 2: Convert to fraction form
    125,859.47/173,682.77 = 68,499.90/x
  3. Step 3: Cross multiply
    125,859.47x = 173,682.77 × 68,499.90
  4. Step 4: Simplify right side
    125,859.47x = 11,897,252,034.22
  5. Step 5: Solve for x
    x = 11,897,252,034.22/125,859.47
  6. Step 6: Final answer
    x = 94,528.07

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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.