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Finding the Fourth Proportional to 91,852.31, 137,778.57 and 36,448.31

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Solution

The fourth proportional to 91,852.31, 137,778.57 and 36,448.31 is: 54,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,852.31 : 137,778.57 = 36,448.31 : x
  2. Step 2: Convert to fraction form
    91,852.31/137,778.57 = 36,448.31/x
  3. Step 3: Cross multiply
    91,852.31x = 137,778.57 × 36,448.31
  4. Step 4: Simplify right side
    91,852.31x = 5,021,796,375.16
  5. Step 5: Solve for x
    x = 5,021,796,375.16/91,852.31
  6. Step 6: Final answer
    x = 54,672.51

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1.5x scale

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.