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Finding the Fourth Proportional to 245,585.70, 368,162.55 and 166,443.30

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Solution

The fourth proportional to 245,585.70, 368,162.55 and 166,443.30 is: 249,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,585.70 : 368,162.55 = 166,443.30 : x
  2. Step 2: Convert to fraction form
    245,585.70/368,162.55 = 166,443.30/x
  3. Step 3: Cross multiply
    245,585.70x = 368,162.55 × 166,443.30
  4. Step 4: Simplify right side
    245,585.70x = 61,278,189,758.42
  5. Step 5: Solve for x
    x = 61,278,189,758.42/245,585.70
  6. Step 6: Final answer
    x = 249,518.56

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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.