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Finding the Fourth Proportional to 191,587.88, 264,472.65 and 136,432.95

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Solution

The fourth proportional to 191,587.88, 264,472.65 and 136,432.95 is: 188,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,587.88 : 264,472.65 = 136,432.95 : x
  2. Step 2: Convert to fraction form
    191,587.88/264,472.65 = 136,432.95/x
  3. Step 3: Cross multiply
    191,587.88x = 264,472.65 × 136,432.95
  4. Step 4: Simplify right side
    191,587.88x = 36,082,783,833.82
  5. Step 5: Solve for x
    x = 36,082,783,833.82/191,587.88
  6. Step 6: Final answer
    x = 188,335.42

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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.