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Finding the Fourth Proportional to 201,616.57, 278,228.71 and 110,970.59

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Solution

The fourth proportional to 201,616.57, 278,228.71 and 110,970.59 is: 153,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,616.57 : 278,228.71 = 110,970.59 : x
  2. Step 2: Convert to fraction form
    201,616.57/278,228.71 = 110,970.59/x
  3. Step 3: Cross multiply
    201,616.57x = 278,228.71 × 110,970.59
  4. Step 4: Simplify right side
    201,616.57x = 30,875,204,103.64
  5. Step 5: Solve for x
    x = 30,875,204,103.64/201,616.57
  6. Step 6: Final answer
    x = 153,138.23

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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.