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Finding the Fourth Proportional to 202,211.46, 279,053.01 and 111,565.98

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Solution

The fourth proportional to 202,211.46, 279,053.01 and 111,565.98 is: 153,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,211.46 : 279,053.01 = 111,565.98 : x
  2. Step 2: Convert to fraction form
    202,211.46/279,053.01 = 111,565.98/x
  3. Step 3: Cross multiply
    202,211.46x = 279,053.01 × 111,565.98
  4. Step 4: Simplify right side
    202,211.46x = 31,132,822,532.60
  5. Step 5: Solve for x
    x = 31,132,822,532.60/202,211.46
  6. Step 6: Final answer
    x = 153,961.71

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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.