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Finding the Fourth Proportional to 101,644.73, 140,267.63 and 56,322.31

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Solution

The fourth proportional to 101,644.73, 140,267.63 and 56,322.31 is: 77,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,644.73 : 140,267.63 = 56,322.31 : x
  2. Step 2: Convert to fraction form
    101,644.73/140,267.63 = 56,322.31/x
  3. Step 3: Cross multiply
    101,644.73x = 140,267.63 × 56,322.31
  4. Step 4: Simplify right side
    101,644.73x = 7,900,196,658.21
  5. Step 5: Solve for x
    x = 7,900,196,658.21/101,644.73
  6. Step 6: Final answer
    x = 77,723.63

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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.