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Finding the Fourth Proportional to 195,507.78, 269,798.65 and 109,467.55

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Solution

The fourth proportional to 195,507.78, 269,798.65 and 109,467.55 is: 151,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,507.78 : 269,798.65 = 109,467.55 : x
  2. Step 2: Convert to fraction form
    195,507.78/269,798.65 = 109,467.55/x
  3. Step 3: Cross multiply
    195,507.78x = 269,798.65 × 109,467.55
  4. Step 4: Simplify right side
    195,507.78x = 29,534,197,272.39
  5. Step 5: Solve for x
    x = 29,534,197,272.39/195,507.78
  6. Step 6: Final answer
    x = 151,064.05

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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.