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Finding the Fourth Proportional to 299,112.70, 448,931.49 and 166,143.10

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Solution

The fourth proportional to 299,112.70, 448,931.49 and 166,143.10 is: 249,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,112.70 : 448,931.49 = 166,143.10 : x
  2. Step 2: Convert to fraction form
    299,112.70/448,931.49 = 166,143.10/x
  3. Step 3: Cross multiply
    299,112.70x = 448,931.49 × 166,143.10
  4. Step 4: Simplify right side
    299,112.70x = 74,586,869,436.22
  5. Step 5: Solve for x
    x = 74,586,869,436.22/299,112.70
  6. Step 6: Final answer
    x = 249,360.42

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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.