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Finding the Fourth Proportional to 95,559.84, 131,838.48 and 65,700

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Solution

The fourth proportional to 95,559.84, 131,838.48 and 65,700 is: 90,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,559.84 : 131,838.48 = 65,700 : x
  2. Step 2: Convert to fraction form
    95,559.84/131,838.48 = 65,700/x
  3. Step 3: Cross multiply
    95,559.84x = 131,838.48 × 65,700
  4. Step 4: Simplify right side
    95,559.84x = 8,661,788,136
  5. Step 5: Solve for x
    x = 8,661,788,136/95,559.84
  6. Step 6: Final answer
    x = 90,642.56

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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.