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Finding the Fourth Proportional to 86,804.98, 119,787.60 and 49,080.04

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Solution

The fourth proportional to 86,804.98, 119,787.60 and 49,080.04 is: 67,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.98 : 119,787.60 = 49,080.04 : x
  2. Step 2: Convert to fraction form
    86,804.98/119,787.60 = 49,080.04/x
  3. Step 3: Cross multiply
    86,804.98x = 119,787.60 × 49,080.04
  4. Step 4: Simplify right side
    86,804.98x = 5,879,180,199.50
  5. Step 5: Solve for x
    x = 5,879,180,199.50/86,804.98
  6. Step 6: Final answer
    x = 67,728.60

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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.