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Finding the Fourth Proportional to 161,858.45, 223,505.70 and 101,532.79

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Solution

The fourth proportional to 161,858.45, 223,505.70 and 101,532.79 is: 140,203.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,858.45 : 223,505.70 = 101,532.79 : x
  2. Step 2: Convert to fraction form
    161,858.45/223,505.70 = 101,532.79/x
  3. Step 3: Cross multiply
    161,858.45x = 223,505.70 × 101,532.79
  4. Step 4: Simplify right side
    161,858.45x = 22,693,157,301.90
  5. Step 5: Solve for x
    x = 22,693,157,301.90/161,858.45
  6. Step 6: Final answer
    x = 140,203.72

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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.