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Finding the Fourth Proportional to 191,900.30, 264,821.81 and 107,017.34

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Solution

The fourth proportional to 191,900.30, 264,821.81 and 107,017.34 is: 147,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,900.30 : 264,821.81 = 107,017.34 : x
  2. Step 2: Convert to fraction form
    191,900.30/264,821.81 = 107,017.34/x
  3. Step 3: Cross multiply
    191,900.30x = 264,821.81 × 107,017.34
  4. Step 4: Simplify right side
    191,900.30x = 28,340,523,820.99
  5. Step 5: Solve for x
    x = 28,340,523,820.99/191,900.30
  6. Step 6: Final answer
    x = 147,683.59

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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.