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Finding the Fourth Proportional to 243,990.72, 366,009.84 and 75,504.24

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Solution

The fourth proportional to 243,990.72, 366,009.84 and 75,504.24 is: 113,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,990.72 : 366,009.84 = 75,504.24 : x
  2. Step 2: Convert to fraction form
    243,990.72/366,009.84 = 75,504.24/x
  3. Step 3: Cross multiply
    243,990.72x = 366,009.84 × 75,504.24
  4. Step 4: Simplify right side
    243,990.72x = 27,635,294,801.72
  5. Step 5: Solve for x
    x = 27,635,294,801.72/243,990.72
  6. Step 6: Final answer
    x = 113,263.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.