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Finding the Fourth Proportional to 201,498.03, 278,107.03 and 115,514.75

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Solution

The fourth proportional to 201,498.03, 278,107.03 and 115,514.75 is: 159,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,498.03 : 278,107.03 = 115,514.75 : x
  2. Step 2: Convert to fraction form
    201,498.03/278,107.03 = 115,514.75/x
  3. Step 3: Cross multiply
    201,498.03x = 278,107.03 × 115,514.75
  4. Step 4: Simplify right side
    201,498.03x = 32,125,464,043.69
  5. Step 5: Solve for x
    x = 32,125,464,043.69/201,498.03
  6. Step 6: Final answer
    x = 159,433.14

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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.