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Finding the Fourth Proportional to 224,279.51, 336,484.19 and 66,511.76

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Solution

The fourth proportional to 224,279.51, 336,484.19 and 66,511.76 is: 99,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,279.51 : 336,484.19 = 66,511.76 : x
  2. Step 2: Convert to fraction form
    224,279.51/336,484.19 = 66,511.76/x
  3. Step 3: Cross multiply
    224,279.51x = 336,484.19 × 66,511.76
  4. Step 4: Simplify right side
    224,279.51x = 22,380,154,172.93
  5. Step 5: Solve for x
    x = 22,380,154,172.93/224,279.51
  6. Step 6: Final answer
    x = 99,786.89

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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.