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Finding the Fourth Proportional to 202,722.55, 279,752.74 and 112,082.33

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Solution

The fourth proportional to 202,722.55, 279,752.74 and 112,082.33 is: 154,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,722.55 : 279,752.74 = 112,082.33 : x
  2. Step 2: Convert to fraction form
    202,722.55/279,752.74 = 112,082.33/x
  3. Step 3: Cross multiply
    202,722.55x = 279,752.74 × 112,082.33
  4. Step 4: Simplify right side
    202,722.55x = 31,355,339,342.26
  5. Step 5: Solve for x
    x = 31,355,339,342.26/202,722.55
  6. Step 6: Final answer
    x = 154,671.20

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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.