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Finding the Fourth Proportional to 228,736.40, 343,118.04 and 88,495.76

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Solution

The fourth proportional to 228,736.40, 343,118.04 and 88,495.76 is: 132,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,736.40 : 343,118.04 = 88,495.76 : x
  2. Step 2: Convert to fraction form
    228,736.40/343,118.04 = 88,495.76/x
  3. Step 3: Cross multiply
    228,736.40x = 343,118.04 × 88,495.76
  4. Step 4: Simplify right side
    228,736.40x = 30,364,491,719.51
  5. Step 5: Solve for x
    x = 30,364,491,719.51/228,736.40
  6. Step 6: Final answer
    x = 132,748.84

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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.