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Finding the Fourth Proportional to 203,776.74, 281,212.90 and 127,340.22

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Solution

The fourth proportional to 203,776.74, 281,212.90 and 127,340.22 is: 175,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,776.74 : 281,212.90 = 127,340.22 : x
  2. Step 2: Convert to fraction form
    203,776.74/281,212.90 = 127,340.22/x
  3. Step 3: Cross multiply
    203,776.74x = 281,212.90 × 127,340.22
  4. Step 4: Simplify right side
    203,776.74x = 35,809,712,552.84
  5. Step 5: Solve for x
    x = 35,809,712,552.84/203,776.74
  6. Step 6: Final answer
    x = 175,730.13

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1.5x scale

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.