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Finding the Fourth Proportional to 75,443.94, 104,069.32 and 47,100.42

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Solution

The fourth proportional to 75,443.94, 104,069.32 and 47,100.42 is: 64,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,443.94 : 104,069.32 = 47,100.42 : x
  2. Step 2: Convert to fraction form
    75,443.94/104,069.32 = 47,100.42/x
  3. Step 3: Cross multiply
    75,443.94x = 104,069.32 × 47,100.42
  4. Step 4: Simplify right side
    75,443.94x = 4,901,708,681.11
  5. Step 5: Solve for x
    x = 4,901,708,681.11/75,443.94
  6. Step 6: Final answer
    x = 64,971.54

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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.