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Finding the Fourth Proportional to 74,473.87, 102,773.73 and 40,482.35

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Solution

The fourth proportional to 74,473.87, 102,773.73 and 40,482.35 is: 55,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,473.87 : 102,773.73 = 40,482.35 : x
  2. Step 2: Convert to fraction form
    74,473.87/102,773.73 = 40,482.35/x
  3. Step 3: Cross multiply
    74,473.87x = 102,773.73 × 40,482.35
  4. Step 4: Simplify right side
    74,473.87x = 4,160,522,108.67
  5. Step 5: Solve for x
    x = 4,160,522,108.67/74,473.87
  6. Step 6: Final answer
    x = 55,865.53

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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.