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Finding the Fourth Proportional to 352,438.92, 528,591.37 and 99,658.48

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Solution

The fourth proportional to 352,438.92, 528,591.37 and 99,658.48 is: 149,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,438.92 : 528,591.37 = 99,658.48 : x
  2. Step 2: Convert to fraction form
    352,438.92/528,591.37 = 99,658.48/x
  3. Step 3: Cross multiply
    352,438.92x = 528,591.37 × 99,658.48
  4. Step 4: Simplify right side
    352,438.92x = 52,678,610,596.00
  5. Step 5: Solve for x
    x = 52,678,610,596.00/352,438.92
  6. Step 6: Final answer
    x = 149,468.77

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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.