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Finding the Fourth Proportional to 95,575.10, 143,189.85 and 81,751.10

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Solution

The fourth proportional to 95,575.10, 143,189.85 and 81,751.10 is: 122,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,575.10 : 143,189.85 = 81,751.10 : x
  2. Step 2: Convert to fraction form
    95,575.10/143,189.85 = 81,751.10/x
  3. Step 3: Cross multiply
    95,575.10x = 143,189.85 × 81,751.10
  4. Step 4: Simplify right side
    95,575.10x = 11,705,927,746.34
  5. Step 5: Solve for x
    x = 11,705,927,746.34/95,575.10
  6. Step 6: Final answer
    x = 122,478.84

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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.