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Finding the Fourth Proportional to 245,412.80, 368,119.20 and 166,097.60

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Solution

The fourth proportional to 245,412.80, 368,119.20 and 166,097.60 is: 249,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,412.80 : 368,119.20 = 166,097.60 : x
  2. Step 2: Convert to fraction form
    245,412.80/368,119.20 = 166,097.60/x
  3. Step 3: Cross multiply
    245,412.80x = 368,119.20 × 166,097.60
  4. Step 4: Simplify right side
    245,412.80x = 61,143,715,633.92
  5. Step 5: Solve for x
    x = 61,143,715,633.92/245,412.80
  6. Step 6: Final answer
    x = 249,146.40

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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.