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Finding the Fourth Proportional to 316,627.89, 474,842.51 and 92,003.86

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Solution

The fourth proportional to 316,627.89, 474,842.51 and 92,003.86 is: 137,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,627.89 : 474,842.51 = 92,003.86 : x
  2. Step 2: Convert to fraction form
    316,627.89/474,842.51 = 92,003.86/x
  3. Step 3: Cross multiply
    316,627.89x = 474,842.51 × 92,003.86
  4. Step 4: Simplify right side
    316,627.89x = 43,687,343,812.09
  5. Step 5: Solve for x
    x = 43,687,343,812.09/316,627.89
  6. Step 6: Final answer
    x = 137,976.93

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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.