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Finding the Fourth Proportional to 75,603.65, 104,326.26 and 43,774.70

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Solution

The fourth proportional to 75,603.65, 104,326.26 and 43,774.70 is: 60,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,603.65 : 104,326.26 = 43,774.70 : x
  2. Step 2: Convert to fraction form
    75,603.65/104,326.26 = 43,774.70/x
  3. Step 3: Cross multiply
    75,603.65x = 104,326.26 × 43,774.70
  4. Step 4: Simplify right side
    75,603.65x = 4,566,850,733.62
  5. Step 5: Solve for x
    x = 4,566,850,733.62/75,603.65
  6. Step 6: Final answer
    x = 60,405.16

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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.