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Finding the Fourth Proportional to 202,561.04, 279,537.16 and 111,919.10

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Solution

The fourth proportional to 202,561.04, 279,537.16 and 111,919.10 is: 154,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,561.04 : 279,537.16 = 111,919.10 : x
  2. Step 2: Convert to fraction form
    202,561.04/279,537.16 = 111,919.10/x
  3. Step 3: Cross multiply
    202,561.04x = 279,537.16 × 111,919.10
  4. Step 4: Simplify right side
    202,561.04x = 31,285,547,363.76
  5. Step 5: Solve for x
    x = 31,285,547,363.76/202,561.04
  6. Step 6: Final answer
    x = 154,449.97

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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.