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Finding the Fourth Proportional to 74,545.70, 102,836.86 and 44,309.59

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Solution

The fourth proportional to 74,545.70, 102,836.86 and 44,309.59 is: 61,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,545.70 : 102,836.86 = 44,309.59 : x
  2. Step 2: Convert to fraction form
    74,545.70/102,836.86 = 44,309.59/x
  3. Step 3: Cross multiply
    74,545.70x = 102,836.86 × 44,309.59
  4. Step 4: Simplify right side
    74,545.70x = 4,556,658,735.62
  5. Step 5: Solve for x
    x = 4,556,658,735.62/74,545.70
  6. Step 6: Final answer
    x = 61,125.71

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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.