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Finding the Fourth Proportional to 247,033.01, 340,866.69 and 143,690.06

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Solution

The fourth proportional to 247,033.01, 340,866.69 and 143,690.06 is: 198,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,033.01 : 340,866.69 = 143,690.06 : x
  2. Step 2: Convert to fraction form
    247,033.01/340,866.69 = 143,690.06/x
  3. Step 3: Cross multiply
    247,033.01x = 340,866.69 × 143,690.06
  4. Step 4: Simplify right side
    247,033.01x = 48,979,155,138.10
  5. Step 5: Solve for x
    x = 48,979,155,138.10/247,033.01
  6. Step 6: Final answer
    x = 198,269.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.