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Finding the Fourth Proportional to 203,681.89, 281,080.63 and 113,038.94

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Solution

The fourth proportional to 203,681.89, 281,080.63 and 113,038.94 is: 155,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,681.89 : 281,080.63 = 113,038.94 : x
  2. Step 2: Convert to fraction form
    203,681.89/281,080.63 = 113,038.94/x
  3. Step 3: Cross multiply
    203,681.89x = 281,080.63 × 113,038.94
  4. Step 4: Simplify right side
    203,681.89x = 31,773,057,313.73
  5. Step 5: Solve for x
    x = 31,773,057,313.73/203,681.89
  6. Step 6: Final answer
    x = 155,993.53

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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.