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Finding the Fourth Proportional to 75,312.39, 103,927.59 and 41,320.11

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Solution

The fourth proportional to 75,312.39, 103,927.59 and 41,320.11 is: 57,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.39 : 103,927.59 = 41,320.11 : x
  2. Step 2: Convert to fraction form
    75,312.39/103,927.59 = 41,320.11/x
  3. Step 3: Cross multiply
    75,312.39x = 103,927.59 × 41,320.11
  4. Step 4: Simplify right side
    75,312.39x = 4,294,299,450.83
  5. Step 5: Solve for x
    x = 4,294,299,450.83/75,312.39
  6. Step 6: Final answer
    x = 57,019.83

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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.