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Finding the Fourth Proportional to 245,411.20, 367,900.80 and 166,268.80

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Solution

The fourth proportional to 245,411.20, 367,900.80 and 166,268.80 is: 249,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,411.20 : 367,900.80 = 166,268.80 : x
  2. Step 2: Convert to fraction form
    245,411.20/367,900.80 = 166,268.80/x
  3. Step 3: Cross multiply
    245,411.20x = 367,900.80 × 166,268.80
  4. Step 4: Simplify right side
    245,411.20x = 61,170,424,535.04
  5. Step 5: Solve for x
    x = 61,170,424,535.04/245,411.20
  6. Step 6: Final answer
    x = 249,256.86

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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.