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Finding the Fourth Proportional to 201,881.40, 278,592.66 and 111,245.73

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Solution

The fourth proportional to 201,881.40, 278,592.66 and 111,245.73 is: 153,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,881.40 : 278,592.66 = 111,245.73 : x
  2. Step 2: Convert to fraction form
    201,881.40/278,592.66 = 111,245.73/x
  3. Step 3: Cross multiply
    201,881.40x = 278,592.66 × 111,245.73
  4. Step 4: Simplify right side
    201,881.40x = 30,992,243,834.34
  5. Step 5: Solve for x
    x = 30,992,243,834.34/201,881.40
  6. Step 6: Final answer
    x = 153,517.08

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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.