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Finding the Fourth Proportional to 316,724.01, 475,086.02 and 80,066.69

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Solution

The fourth proportional to 316,724.01, 475,086.02 and 80,066.69 is: 120,100.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,724.01 : 475,086.02 = 80,066.69 : x
  2. Step 2: Convert to fraction form
    316,724.01/475,086.02 = 80,066.69/x
  3. Step 3: Cross multiply
    316,724.01x = 475,086.02 × 80,066.69
  4. Step 4: Simplify right side
    316,724.01x = 38,038,565,086.67
  5. Step 5: Solve for x
    x = 38,038,565,086.67/316,724.01
  6. Step 6: Final answer
    x = 120,100.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.