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Finding the Fourth Proportional to 75,168.56, 103,731.08 and 43,335.56

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Solution

The fourth proportional to 75,168.56, 103,731.08 and 43,335.56 is: 59,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,168.56 : 103,731.08 = 43,335.56 : x
  2. Step 2: Convert to fraction form
    75,168.56/103,731.08 = 43,335.56/x
  3. Step 3: Cross multiply
    75,168.56x = 103,731.08 × 43,335.56
  4. Step 4: Simplify right side
    75,168.56x = 4,495,244,441.20
  5. Step 5: Solve for x
    x = 4,495,244,441.20/75,168.56
  6. Step 6: Final answer
    x = 59,802.19

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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.