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Finding the Fourth Proportional to 161,648.40, 223,066.11 and 89,048.91

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Solution

The fourth proportional to 161,648.40, 223,066.11 and 89,048.91 is: 122,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,648.40 : 223,066.11 = 89,048.91 : x
  2. Step 2: Convert to fraction form
    161,648.40/223,066.11 = 89,048.91/x
  3. Step 3: Cross multiply
    161,648.40x = 223,066.11 × 89,048.91
  4. Step 4: Simplify right side
    161,648.40x = 19,863,793,953.44
  5. Step 5: Solve for x
    x = 19,863,793,953.44/161,648.40
  6. Step 6: Final answer
    x = 122,882.71

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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.