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Finding the Fourth Proportional to 79,077.60, 118,620.72 and 26,482.32

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Solution

The fourth proportional to 79,077.60, 118,620.72 and 26,482.32 is: 39,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.60 : 118,620.72 = 26,482.32 : x
  2. Step 2: Convert to fraction form
    79,077.60/118,620.72 = 26,482.32/x
  3. Step 3: Cross multiply
    79,077.60x = 118,620.72 × 26,482.32
  4. Step 4: Simplify right side
    79,077.60x = 3,141,351,865.67
  5. Step 5: Solve for x
    x = 3,141,351,865.67/79,077.60
  6. Step 6: Final answer
    x = 39,724.93

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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.