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Finding the Fourth Proportional to 75,261.72, 103,842.90 and 41,727.72

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Solution

The fourth proportional to 75,261.72, 103,842.90 and 41,727.72 is: 57,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,261.72 : 103,842.90 = 41,727.72 : x
  2. Step 2: Convert to fraction form
    75,261.72/103,842.90 = 41,727.72/x
  3. Step 3: Cross multiply
    75,261.72x = 103,842.90 × 41,727.72
  4. Step 4: Simplify right side
    75,261.72x = 4,333,127,455.19
  5. Step 5: Solve for x
    x = 4,333,127,455.19/75,261.72
  6. Step 6: Final answer
    x = 57,574.12

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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.