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Finding the Fourth Proportional to 232,474.40, 348,711.60 and 74,715.20

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Solution

The fourth proportional to 232,474.40, 348,711.60 and 74,715.20 is: 112,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,474.40 : 348,711.60 = 74,715.20 : x
  2. Step 2: Convert to fraction form
    232,474.40/348,711.60 = 74,715.20/x
  3. Step 3: Cross multiply
    232,474.40x = 348,711.60 × 74,715.20
  4. Step 4: Simplify right side
    232,474.40x = 26,054,056,936.32
  5. Step 5: Solve for x
    x = 26,054,056,936.32/232,474.40
  6. Step 6: Final answer
    x = 112,072.80

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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.