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Finding the Fourth Proportional to 268,544.58, 402,816.90 and 127,876.74

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Solution

The fourth proportional to 268,544.58, 402,816.90 and 127,876.74 is: 191,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,544.58 : 402,816.90 = 127,876.74 : x
  2. Step 2: Convert to fraction form
    268,544.58/402,816.90 = 127,876.74/x
  3. Step 3: Cross multiply
    268,544.58x = 402,816.90 × 127,876.74
  4. Step 4: Simplify right side
    268,544.58x = 51,510,911,988.91
  5. Step 5: Solve for x
    x = 51,510,911,988.91/268,544.58
  6. Step 6: Final answer
    x = 191,815.12

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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.