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Finding the Fourth Proportional to 203,776.76, 281,155.02 and 127,373.63

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Solution

The fourth proportional to 203,776.76, 281,155.02 and 127,373.63 is: 175,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,776.76 : 281,155.02 = 127,373.63 : x
  2. Step 2: Convert to fraction form
    203,776.76/281,155.02 = 127,373.63/x
  3. Step 3: Cross multiply
    203,776.76x = 281,155.02 × 127,373.63
  4. Step 4: Simplify right side
    203,776.76x = 35,811,734,084.35
  5. Step 5: Solve for x
    x = 35,811,734,084.35/203,776.76
  6. Step 6: Final answer
    x = 175,740.04

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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.