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Finding the Fourth Proportional to 260,301.66, 390,466.17 and 73,327.74

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Solution

The fourth proportional to 260,301.66, 390,466.17 and 73,327.74 is: 109,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,301.66 : 390,466.17 = 73,327.74 : x
  2. Step 2: Convert to fraction form
    260,301.66/390,466.17 = 73,327.74/x
  3. Step 3: Cross multiply
    260,301.66x = 390,466.17 × 73,327.74
  4. Step 4: Simplify right side
    260,301.66x = 28,632,001,792.56
  5. Step 5: Solve for x
    x = 28,632,001,792.56/260,301.66
  6. Step 6: Final answer
    x = 109,995.46

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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.