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Finding the Fourth Proportional to 236,712.60, 355,068.90 and 68,232.60

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Solution

The fourth proportional to 236,712.60, 355,068.90 and 68,232.60 is: 102,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,712.60 : 355,068.90 = 68,232.60 : x
  2. Step 2: Convert to fraction form
    236,712.60/355,068.90 = 68,232.60/x
  3. Step 3: Cross multiply
    236,712.60x = 355,068.90 × 68,232.60
  4. Step 4: Simplify right side
    236,712.60x = 24,227,274,226.14
  5. Step 5: Solve for x
    x = 24,227,274,226.14/236,712.60
  6. Step 6: Final answer
    x = 102,348.90

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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.