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Finding the Fourth Proportional to 92,482.80, 138,724.80 and 30,153.30

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Solution

The fourth proportional to 92,482.80, 138,724.80 and 30,153.30 is: 45,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,482.80 : 138,724.80 = 30,153.30 : x
  2. Step 2: Convert to fraction form
    92,482.80/138,724.80 = 30,153.30/x
  3. Step 3: Cross multiply
    92,482.80x = 138,724.80 × 30,153.30
  4. Step 4: Simplify right side
    92,482.80x = 4,183,010,511.84
  5. Step 5: Solve for x
    x = 4,183,010,511.84/92,482.80
  6. Step 6: Final answer
    x = 45,230.15

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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.