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Finding the Fourth Proportional to 202,082.04, 278,866.80 and 111,441.83

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Solution

The fourth proportional to 202,082.04, 278,866.80 and 111,441.83 is: 153,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,082.04 : 278,866.80 = 111,441.83 : x
  2. Step 2: Convert to fraction form
    202,082.04/278,866.80 = 111,441.83/x
  3. Step 3: Cross multiply
    202,082.04x = 278,866.80 × 111,441.83
  4. Step 4: Simplify right side
    202,082.04x = 31,077,425,123.91
  5. Step 5: Solve for x
    x = 31,077,425,123.91/202,082.04
  6. Step 6: Final answer
    x = 153,786.18

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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.