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Finding the Fourth Proportional to 65,737.56, 98,528.47 and 30,168.89

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Solution

The fourth proportional to 65,737.56, 98,528.47 and 30,168.89 is: 45,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,737.56 : 98,528.47 = 30,168.89 : x
  2. Step 2: Convert to fraction form
    65,737.56/98,528.47 = 30,168.89/x
  3. Step 3: Cross multiply
    65,737.56x = 98,528.47 × 30,168.89
  4. Step 4: Simplify right side
    65,737.56x = 2,972,494,374.72
  5. Step 5: Solve for x
    x = 2,972,494,374.72/65,737.56
  6. Step 6: Final answer
    x = 45,217.60

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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.