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Finding the Fourth Proportional to 171,801.94, 237,089.22 and 128,705.08

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Solution

The fourth proportional to 171,801.94, 237,089.22 and 128,705.08 is: 177,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,801.94 : 237,089.22 = 128,705.08 : x
  2. Step 2: Convert to fraction form
    171,801.94/237,089.22 = 128,705.08/x
  3. Step 3: Cross multiply
    171,801.94x = 237,089.22 × 128,705.08
  4. Step 4: Simplify right side
    171,801.94x = 30,514,587,027.24
  5. Step 5: Solve for x
    x = 30,514,587,027.24/171,801.94
  6. Step 6: Final answer
    x = 177,614.92

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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.