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Finding the Fourth Proportional to 101,482.30, 140,045.84 and 56,163.41

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Solution

The fourth proportional to 101,482.30, 140,045.84 and 56,163.41 is: 77,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,482.30 : 140,045.84 = 56,163.41 : x
  2. Step 2: Convert to fraction form
    101,482.30/140,045.84 = 56,163.41/x
  3. Step 3: Cross multiply
    101,482.30x = 140,045.84 × 56,163.41
  4. Step 4: Simplify right side
    101,482.30x = 7,865,452,001.37
  5. Step 5: Solve for x
    x = 7,865,452,001.37/101,482.30
  6. Step 6: Final answer
    x = 77,505.65

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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.