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Finding the Fourth Proportional to 268,295.04, 402,441.72 and 68,615.46

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Solution

The fourth proportional to 268,295.04, 402,441.72 and 68,615.46 is: 102,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,295.04 : 402,441.72 = 68,615.46 : x
  2. Step 2: Convert to fraction form
    268,295.04/402,441.72 = 68,615.46/x
  3. Step 3: Cross multiply
    268,295.04x = 402,441.72 × 68,615.46
  4. Step 4: Simplify right side
    268,295.04x = 27,613,723,740.99
  5. Step 5: Solve for x
    x = 27,613,723,740.99/268,295.04
  6. Step 6: Final answer
    x = 102,922.98

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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.