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Finding the Fourth Proportional to 191,531.76, 264,308.41 and 104,314.88

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Solution

The fourth proportional to 191,531.76, 264,308.41 and 104,314.88 is: 143,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,531.76 : 264,308.41 = 104,314.88 : x
  2. Step 2: Convert to fraction form
    191,531.76/264,308.41 = 104,314.88/x
  3. Step 3: Cross multiply
    191,531.76x = 264,308.41 × 104,314.88
  4. Step 4: Simplify right side
    191,531.76x = 27,571,300,072.14
  5. Step 5: Solve for x
    x = 27,571,300,072.14/191,531.76
  6. Step 6: Final answer
    x = 143,951.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.