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Finding the Fourth Proportional to 268,069.82, 402,182.55 and 108,063.17

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Solution

The fourth proportional to 268,069.82, 402,182.55 and 108,063.17 is: 162,126.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,069.82 : 402,182.55 = 108,063.17 : x
  2. Step 2: Convert to fraction form
    268,069.82/402,182.55 = 108,063.17/x
  3. Step 3: Cross multiply
    268,069.82x = 402,182.55 × 108,063.17
  4. Step 4: Simplify right side
    268,069.82x = 43,461,121,271.68
  5. Step 5: Solve for x
    x = 43,461,121,271.68/268,069.82
  6. Step 6: Final answer
    x = 162,126.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.