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Finding the Fourth Proportional to 85,167.98, 117,505.79 and 49,351.07

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Solution

The fourth proportional to 85,167.98, 117,505.79 and 49,351.07 is: 68,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,167.98 : 117,505.79 = 49,351.07 : x
  2. Step 2: Convert to fraction form
    85,167.98/117,505.79 = 49,351.07/x
  3. Step 3: Cross multiply
    85,167.98x = 117,505.79 × 49,351.07
  4. Step 4: Simplify right side
    85,167.98x = 5,799,035,633.41
  5. Step 5: Solve for x
    x = 5,799,035,633.41/85,167.98
  6. Step 6: Final answer
    x = 68,089.39

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1.5x scale

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.