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Finding the Fourth Proportional to 75,352.94, 103,987.05 and 41,818.94

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Solution

The fourth proportional to 75,352.94, 103,987.05 and 41,818.94 is: 57,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,352.94 : 103,987.05 = 41,818.94 : x
  2. Step 2: Convert to fraction form
    75,352.94/103,987.05 = 41,818.94/x
  3. Step 3: Cross multiply
    75,352.94x = 103,987.05 × 41,818.94
  4. Step 4: Simplify right side
    75,352.94x = 4,348,628,204.73
  5. Step 5: Solve for x
    x = 4,348,628,204.73/75,352.94
  6. Step 6: Final answer
    x = 57,710.13

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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.