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Finding the Fourth Proportional to 161,706.80, 223,171.80 and 90,098.48

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Solution

The fourth proportional to 161,706.80, 223,171.80 and 90,098.48 is: 124,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,706.80 : 223,171.80 = 90,098.48 : x
  2. Step 2: Convert to fraction form
    161,706.80/223,171.80 = 90,098.48/x
  3. Step 3: Cross multiply
    161,706.80x = 223,171.80 × 90,098.48
  4. Step 4: Simplify right side
    161,706.80x = 20,107,439,958.86
  5. Step 5: Solve for x
    x = 20,107,439,958.86/161,706.80
  6. Step 6: Final answer
    x = 124,345.05

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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.