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Finding the Fourth Proportional to 203,644.71, 281,016.20 and 112,994.93

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Solution

The fourth proportional to 203,644.71, 281,016.20 and 112,994.93 is: 155,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,644.71 : 281,016.20 = 112,994.93 : x
  2. Step 2: Convert to fraction form
    203,644.71/281,016.20 = 112,994.93/x
  3. Step 3: Cross multiply
    203,644.71x = 281,016.20 × 112,994.93
  4. Step 4: Simplify right side
    203,644.71x = 31,753,405,282.89
  5. Step 5: Solve for x
    x = 31,753,405,282.89/203,644.71
  6. Step 6: Final answer
    x = 155,925.51

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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.