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Finding the Fourth Proportional to 211,009.01, 316,513.52 and 70,767.23

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Solution

The fourth proportional to 211,009.01, 316,513.52 and 70,767.23 is: 106,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009.01 : 316,513.52 = 70,767.23 : x
  2. Step 2: Convert to fraction form
    211,009.01/316,513.52 = 70,767.23/x
  3. Step 3: Cross multiply
    211,009.01x = 316,513.52 × 70,767.23
  4. Step 4: Simplify right side
    211,009.01x = 22,398,785,067.95
  5. Step 5: Solve for x
    x = 22,398,785,067.95/211,009.01
  6. Step 6: Final answer
    x = 106,150.85

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1.5x scale

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.