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Finding the Fourth Proportional to 191,645.68, 264,479.22 and 106,762.72

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Solution

The fourth proportional to 191,645.68, 264,479.22 and 106,762.72 is: 147,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,645.68 : 264,479.22 = 106,762.72 : x
  2. Step 2: Convert to fraction form
    191,645.68/264,479.22 = 106,762.72/x
  3. Step 3: Cross multiply
    191,645.68x = 264,479.22 × 106,762.72
  4. Step 4: Simplify right side
    191,645.68x = 28,236,520,910.68
  5. Step 5: Solve for x
    x = 28,236,520,910.68/191,645.68
  6. Step 6: Final answer
    x = 147,337.11

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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.