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Finding the Fourth Proportional to 161,666.28, 223,064.28 and 98,019.72

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Solution

The fourth proportional to 161,666.28, 223,064.28 and 98,019.72 is: 135,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,666.28 : 223,064.28 = 98,019.72 : x
  2. Step 2: Convert to fraction form
    161,666.28/223,064.28 = 98,019.72/x
  3. Step 3: Cross multiply
    161,666.28x = 223,064.28 × 98,019.72
  4. Step 4: Simplify right side
    161,666.28x = 21,864,698,267.60
  5. Step 5: Solve for x
    x = 21,864,698,267.60/161,666.28
  6. Step 6: Final answer
    x = 135,245.88

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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.