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Finding the Fourth Proportional to 80,319.77, 110,844.14 and 48,482.45

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Solution

The fourth proportional to 80,319.77, 110,844.14 and 48,482.45 is: 66,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,319.77 : 110,844.14 = 48,482.45 : x
  2. Step 2: Convert to fraction form
    80,319.77/110,844.14 = 48,482.45/x
  3. Step 3: Cross multiply
    80,319.77x = 110,844.14 × 48,482.45
  4. Step 4: Simplify right side
    80,319.77x = 5,373,994,678.71
  5. Step 5: Solve for x
    x = 5,373,994,678.71/80,319.77
  6. Step 6: Final answer
    x = 66,907.50

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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.