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Finding the Fourth Proportional to 268,626.01, 402,800.32 and 79,061.74

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Solution

The fourth proportional to 268,626.01, 402,800.32 and 79,061.74 is: 118,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,626.01 : 402,800.32 = 79,061.74 : x
  2. Step 2: Convert to fraction form
    268,626.01/402,800.32 = 79,061.74/x
  3. Step 3: Cross multiply
    268,626.01x = 402,800.32 × 79,061.74
  4. Step 4: Simplify right side
    268,626.01x = 31,846,094,171.76
  5. Step 5: Solve for x
    x = 31,846,094,171.76/268,626.01
  6. Step 6: Final answer
    x = 118,551.79

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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.