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Finding the Fourth Proportional to 75,415.25, 104,073.25 and 41,881.25

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Solution

The fourth proportional to 75,415.25, 104,073.25 and 41,881.25 is: 57,796.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.25 : 104,073.25 = 41,881.25 : x
  2. Step 2: Convert to fraction form
    75,415.25/104,073.25 = 41,881.25/x
  3. Step 3: Cross multiply
    75,415.25x = 104,073.25 × 41,881.25
  4. Step 4: Simplify right side
    75,415.25x = 4,358,717,176.49
  5. Step 5: Solve for x
    x = 4,358,717,176.49/75,415.25
  6. Step 6: Final answer
    x = 57,796.23

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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.