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Finding the Fourth Proportional to 99,658.34, 149,318.34 and 60,132.40

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Solution

The fourth proportional to 99,658.34, 149,318.34 and 60,132.40 is: 90,096.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658.34 : 149,318.34 = 60,132.40 : x
  2. Step 2: Convert to fraction form
    99,658.34/149,318.34 = 60,132.40/x
  3. Step 3: Cross multiply
    99,658.34x = 149,318.34 × 60,132.40
  4. Step 4: Simplify right side
    99,658.34x = 8,978,870,148.22
  5. Step 5: Solve for x
    x = 8,978,870,148.22/99,658.34
  6. Step 6: Final answer
    x = 90,096.53

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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.