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Finding the Fourth Proportional to 202,443.01, 279,370.41 and 111,798.58

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Solution

The fourth proportional to 202,443.01, 279,370.41 and 111,798.58 is: 154,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,443.01 : 279,370.41 = 111,798.58 : x
  2. Step 2: Convert to fraction form
    202,443.01/279,370.41 = 111,798.58/x
  3. Step 3: Cross multiply
    202,443.01x = 279,370.41 × 111,798.58
  4. Step 4: Simplify right side
    202,443.01x = 31,233,213,176.17
  5. Step 5: Solve for x
    x = 31,233,213,176.17/202,443.01
  6. Step 6: Final answer
    x = 154,281.51

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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.