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Finding the Fourth Proportional to 91,748.03, 137,635.74 and 32,578.74

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Solution

The fourth proportional to 91,748.03, 137,635.74 and 32,578.74 is: 48,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,748.03 : 137,635.74 = 32,578.74 : x
  2. Step 2: Convert to fraction form
    91,748.03/137,635.74 = 32,578.74/x
  3. Step 3: Cross multiply
    91,748.03x = 137,635.74 × 32,578.74
  4. Step 4: Simplify right side
    91,748.03x = 4,483,998,988.17
  5. Step 5: Solve for x
    x = 4,483,998,988.17/91,748.03
  6. Step 6: Final answer
    x = 48,872.98

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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.