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Finding the Fourth Proportional to 73,290.16, 109,926.60 and 32,768.56

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Solution

The fourth proportional to 73,290.16, 109,926.60 and 32,768.56 is: 49,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,290.16 : 109,926.60 = 32,768.56 : x
  2. Step 2: Convert to fraction form
    73,290.16/109,926.60 = 32,768.56/x
  3. Step 3: Cross multiply
    73,290.16x = 109,926.60 × 32,768.56
  4. Step 4: Simplify right side
    73,290.16x = 3,602,136,387.70
  5. Step 5: Solve for x
    x = 3,602,136,387.70/73,290.16
  6. Step 6: Final answer
    x = 49,148.98

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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.