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Finding the Fourth Proportional to 245,786.20, 368,463.30 and 166,643.80

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Solution

The fourth proportional to 245,786.20, 368,463.30 and 166,643.80 is: 249,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,786.20 : 368,463.30 = 166,643.80 : x
  2. Step 2: Convert to fraction form
    245,786.20/368,463.30 = 166,643.80/x
  3. Step 3: Cross multiply
    245,786.20x = 368,463.30 × 166,643.80
  4. Step 4: Simplify right side
    245,786.20x = 61,402,124,472.54
  5. Step 5: Solve for x
    x = 61,402,124,472.54/245,786.20
  6. Step 6: Final answer
    x = 249,819.25

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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.