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Finding the Fourth Proportional to 452,578.17, 678,792.63 and 148,976.25

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Solution

The fourth proportional to 452,578.17, 678,792.63 and 148,976.25 is: 223,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,578.17 : 678,792.63 = 148,976.25 : x
  2. Step 2: Convert to fraction form
    452,578.17/678,792.63 = 148,976.25/x
  3. Step 3: Cross multiply
    452,578.17x = 678,792.63 × 148,976.25
  4. Step 4: Simplify right side
    452,578.17x = 101,123,980,545.04
  5. Step 5: Solve for x
    x = 101,123,980,545.04/452,578.17
  6. Step 6: Final answer
    x = 223,439.81

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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.