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Finding the Fourth Proportional to 232,276.80, 348,415.20 and 66,043.20

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Solution

The fourth proportional to 232,276.80, 348,415.20 and 66,043.20 is: 99,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,276.80 : 348,415.20 = 66,043.20 : x
  2. Step 2: Convert to fraction form
    232,276.80/348,415.20 = 66,043.20/x
  3. Step 3: Cross multiply
    232,276.80x = 348,415.20 × 66,043.20
  4. Step 4: Simplify right side
    232,276.80x = 23,010,454,736.64
  5. Step 5: Solve for x
    x = 23,010,454,736.64/232,276.80
  6. Step 6: Final answer
    x = 99,064.80

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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.