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Finding the Fourth Proportional to 73,781.64, 110,628.72 and 34,347.60

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Solution

The fourth proportional to 73,781.64, 110,628.72 and 34,347.60 is: 51,501.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,781.64 : 110,628.72 = 34,347.60 : x
  2. Step 2: Convert to fraction form
    73,781.64/110,628.72 = 34,347.60/x
  3. Step 3: Cross multiply
    73,781.64x = 110,628.72 × 34,347.60
  4. Step 4: Simplify right side
    73,781.64x = 3,799,831,023.07
  5. Step 5: Solve for x
    x = 3,799,831,023.07/73,781.64
  6. Step 6: Final answer
    x = 51,501.04

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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.