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Finding the Fourth Proportional to 91,554.84, 126,360.63 and 62,850.78

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Solution

The fourth proportional to 91,554.84, 126,360.63 and 62,850.78 is: 86,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,554.84 : 126,360.63 = 62,850.78 : x
  2. Step 2: Convert to fraction form
    91,554.84/126,360.63 = 62,850.78/x
  3. Step 3: Cross multiply
    91,554.84x = 126,360.63 × 62,850.78
  4. Step 4: Simplify right side
    91,554.84x = 7,941,864,156.79
  5. Step 5: Solve for x
    x = 7,941,864,156.79/91,554.84
  6. Step 6: Final answer
    x = 86,744.34

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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.