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Finding the Fourth Proportional to 161,665.71, 223,021.41 and 125,608.97

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Solution

The fourth proportional to 161,665.71, 223,021.41 and 125,608.97 is: 173,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,665.71 : 223,021.41 = 125,608.97 : x
  2. Step 2: Convert to fraction form
    161,665.71/223,021.41 = 125,608.97/x
  3. Step 3: Cross multiply
    161,665.71x = 223,021.41 × 125,608.97
  4. Step 4: Simplify right side
    161,665.71x = 28,013,488,482.94
  5. Step 5: Solve for x
    x = 28,013,488,482.94/161,665.71
  6. Step 6: Final answer
    x = 173,280.34

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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.