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Finding the Fourth Proportional to 75,645.80, 113,468.70 and 52,026.20

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Solution

The fourth proportional to 75,645.80, 113,468.70 and 52,026.20 is: 78,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,645.80 : 113,468.70 = 52,026.20 : x
  2. Step 2: Convert to fraction form
    75,645.80/113,468.70 = 52,026.20/x
  3. Step 3: Cross multiply
    75,645.80x = 113,468.70 × 52,026.20
  4. Step 4: Simplify right side
    75,645.80x = 5,903,345,279.94
  5. Step 5: Solve for x
    x = 5,903,345,279.94/75,645.80
  6. Step 6: Final answer
    x = 78,039.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.