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Finding the Fourth Proportional to 191,963.34, 264,915.18 and 107,078.58

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Solution

The fourth proportional to 191,963.34, 264,915.18 and 107,078.58 is: 147,771.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,963.34 : 264,915.18 = 107,078.58 : x
  2. Step 2: Convert to fraction form
    191,963.34/264,915.18 = 107,078.58/x
  3. Step 3: Cross multiply
    191,963.34x = 264,915.18 × 107,078.58
  4. Step 4: Simplify right side
    191,963.34x = 28,366,741,294.84
  5. Step 5: Solve for x
    x = 28,366,741,294.84/191,963.34
  6. Step 6: Final answer
    x = 147,771.66

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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.