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Finding the Fourth Proportional to 239,798.72, 330,843.64 and 170,899.03

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Solution

The fourth proportional to 239,798.72, 330,843.64 and 170,899.03 is: 235,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,798.72 : 330,843.64 = 170,899.03 : x
  2. Step 2: Convert to fraction form
    239,798.72/330,843.64 = 170,899.03/x
  3. Step 3: Cross multiply
    239,798.72x = 330,843.64 × 170,899.03
  4. Step 4: Simplify right side
    239,798.72x = 56,540,857,871.12
  5. Step 5: Solve for x
    x = 56,540,857,871.12/239,798.72
  6. Step 6: Final answer
    x = 235,784.66

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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.