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Finding the Fourth Proportional to 364,857.82, 547,305.18 and 140,139.47

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Solution

The fourth proportional to 364,857.82, 547,305.18 and 140,139.47 is: 210,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,857.82 : 547,305.18 = 140,139.47 : x
  2. Step 2: Convert to fraction form
    364,857.82/547,305.18 = 140,139.47/x
  3. Step 3: Cross multiply
    364,857.82x = 547,305.18 × 140,139.47
  4. Step 4: Simplify right side
    364,857.82x = 76,699,056,011.75
  5. Step 5: Solve for x
    x = 76,699,056,011.75/364,857.82
  6. Step 6: Final answer
    x = 210,216.29

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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.