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Finding the Fourth Proportional to 75,111.88, 112,706.67 and 33,021.52

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Solution

The fourth proportional to 75,111.88, 112,706.67 and 33,021.52 is: 49,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,111.88 : 112,706.67 = 33,021.52 : x
  2. Step 2: Convert to fraction form
    75,111.88/112,706.67 = 33,021.52/x
  3. Step 3: Cross multiply
    75,111.88x = 112,706.67 × 33,021.52
  4. Step 4: Simplify right side
    75,111.88x = 3,721,745,557.54
  5. Step 5: Solve for x
    x = 3,721,745,557.54/75,111.88
  6. Step 6: Final answer
    x = 49,549.36

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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.