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Finding the Fourth Proportional to 101,514.87, 140,091.77 and 56,197.05

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Solution

The fourth proportional to 101,514.87, 140,091.77 and 56,197.05 is: 77,552.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,514.87 : 140,091.77 = 56,197.05 : x
  2. Step 2: Convert to fraction form
    101,514.87/140,091.77 = 56,197.05/x
  3. Step 3: Cross multiply
    101,514.87x = 140,091.77 × 56,197.05
  4. Step 4: Simplify right side
    101,514.87x = 7,872,744,203.28
  5. Step 5: Solve for x
    x = 7,872,744,203.28/101,514.87
  6. Step 6: Final answer
    x = 77,552.62

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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.