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Finding the Fourth Proportional to 232,503.20, 348,803.40 and 74,747.60

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Solution

The fourth proportional to 232,503.20, 348,803.40 and 74,747.60 is: 112,137.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,503.20 : 348,803.40 = 74,747.60 : x
  2. Step 2: Convert to fraction form
    232,503.20/348,803.40 = 74,747.60/x
  3. Step 3: Cross multiply
    232,503.20x = 348,803.40 × 74,747.60
  4. Step 4: Simplify right side
    232,503.20x = 26,072,217,021.84
  5. Step 5: Solve for x
    x = 26,072,217,021.84/232,503.20
  6. Step 6: Final answer
    x = 112,137.02

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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.