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Finding the Fourth Proportional to 191,578.65, 264,378.54 and 106,695.72

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Solution

The fourth proportional to 191,578.65, 264,378.54 and 106,695.72 is: 147,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,578.65 : 264,378.54 = 106,695.72 : x
  2. Step 2: Convert to fraction form
    191,578.65/264,378.54 = 106,695.72/x
  3. Step 3: Cross multiply
    191,578.65x = 264,378.54 × 106,695.72
  4. Step 4: Simplify right side
    191,578.65x = 28,208,058,086.54
  5. Step 5: Solve for x
    x = 28,208,058,086.54/191,578.65
  6. Step 6: Final answer
    x = 147,240.09

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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.