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Finding the Fourth Proportional to 121,181.10, 181,808.10 and 65,048.10

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Solution

The fourth proportional to 121,181.10, 181,808.10 and 65,048.10 is: 97,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,181.10 : 181,808.10 = 65,048.10 : x
  2. Step 2: Convert to fraction form
    121,181.10/181,808.10 = 65,048.10/x
  3. Step 3: Cross multiply
    121,181.10x = 181,808.10 × 65,048.10
  4. Step 4: Simplify right side
    121,181.10x = 11,826,271,469.61
  5. Step 5: Solve for x
    x = 11,826,271,469.61/121,181.10
  6. Step 6: Final answer
    x = 97,591.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.