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Finding the Fourth Proportional to 161,864.64, 223,334.72 and 98,200.80

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Solution

The fourth proportional to 161,864.64, 223,334.72 and 98,200.80 is: 135,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,864.64 : 223,334.72 = 98,200.80 : x
  2. Step 2: Convert to fraction form
    161,864.64/223,334.72 = 98,200.80/x
  3. Step 3: Cross multiply
    161,864.64x = 223,334.72 × 98,200.80
  4. Step 4: Simplify right side
    161,864.64x = 21,931,648,171.78
  5. Step 5: Solve for x
    x = 21,931,648,171.78/161,864.64
  6. Step 6: Final answer
    x = 135,493.76

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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.