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Finding the Fourth Proportional to 68,670.90, 95,931.90 and 68,670.90

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Solution

The fourth proportional to 68,670.90, 95,931.90 and 68,670.90 is: 95,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,670.90 : 95,931.90 = 68,670.90 : x
  2. Step 2: Convert to fraction form
    68,670.90/95,931.90 = 68,670.90/x
  3. Step 3: Cross multiply
    68,670.90x = 95,931.90 × 68,670.90
  4. Step 4: Simplify right side
    68,670.90x = 6,587,729,911.71
  5. Step 5: Solve for x
    x = 6,587,729,911.71/68,670.90
  6. Step 6: Final answer
    x = 95,931.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.