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Finding the Fourth Proportional to 161,665.70, 223,021.40 and 125,608.96

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Solution

The fourth proportional to 161,665.70, 223,021.40 and 125,608.96 is: 173,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,665.70 : 223,021.40 = 125,608.96 : x
  2. Step 2: Convert to fraction form
    161,665.70/223,021.40 = 125,608.96/x
  3. Step 3: Cross multiply
    161,665.70x = 223,021.40 × 125,608.96
  4. Step 4: Simplify right side
    161,665.70x = 28,013,484,926.15
  5. Step 5: Solve for x
    x = 28,013,484,926.15/161,665.70
  6. Step 6: Final answer
    x = 173,280.32

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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.