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Finding the Fourth Proportional to 268,377.68, 370,443.72 and 172,884.08

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Solution

The fourth proportional to 268,377.68, 370,443.72 and 172,884.08 is: 238,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,377.68 : 370,443.72 = 172,884.08 : x
  2. Step 2: Convert to fraction form
    268,377.68/370,443.72 = 172,884.08/x
  3. Step 3: Cross multiply
    268,377.68x = 370,443.72 × 172,884.08
  4. Step 4: Simplify right side
    268,377.68x = 64,043,821,723.98
  5. Step 5: Solve for x
    x = 64,043,821,723.98/268,377.68
  6. Step 6: Final answer
    x = 238,633.19

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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.