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Finding the Fourth Proportional to 239,459.75, 359,085.52 and 68,643.84

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Solution

The fourth proportional to 239,459.75, 359,085.52 and 68,643.84 is: 102,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,459.75 : 359,085.52 = 68,643.84 : x
  2. Step 2: Convert to fraction form
    239,459.75/359,085.52 = 68,643.84/x
  3. Step 3: Cross multiply
    239,459.75x = 359,085.52 × 68,643.84
  4. Step 4: Simplify right side
    239,459.75x = 24,649,008,981.20
  5. Step 5: Solve for x
    x = 24,649,008,981.20/239,459.75
  6. Step 6: Final answer
    x = 102,935.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.