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Finding the Fourth Proportional to 448,897.19, 673,230.58 and 133,280.87

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Solution

The fourth proportional to 448,897.19, 673,230.58 and 133,280.87 is: 199,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,897.19 : 673,230.58 = 133,280.87 : x
  2. Step 2: Convert to fraction form
    448,897.19/673,230.58 = 133,280.87/x
  3. Step 3: Cross multiply
    448,897.19x = 673,230.58 × 133,280.87
  4. Step 4: Simplify right side
    448,897.19x = 89,728,757,413.00
  5. Step 5: Solve for x
    x = 89,728,757,413.00/448,897.19
  6. Step 6: Final answer
    x = 199,887.10

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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.