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Finding the Fourth Proportional to 75,391.34, 104,040.42 and 47,113.34

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Solution

The fourth proportional to 75,391.34, 104,040.42 and 47,113.34 is: 65,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,391.34 : 104,040.42 = 47,113.34 : x
  2. Step 2: Convert to fraction form
    75,391.34/104,040.42 = 47,113.34/x
  3. Step 3: Cross multiply
    75,391.34x = 104,040.42 × 47,113.34
  4. Step 4: Simplify right side
    75,391.34x = 4,901,691,681.20
  5. Step 5: Solve for x
    x = 4,901,691,681.20/75,391.34
  6. Step 6: Final answer
    x = 65,016.64

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1.5x scale

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.