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Finding the Fourth Proportional to 214,944.30, 322,419.15 and 65,186.10

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Solution

The fourth proportional to 214,944.30, 322,419.15 and 65,186.10 is: 97,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,944.30 : 322,419.15 = 65,186.10 : x
  2. Step 2: Convert to fraction form
    214,944.30/322,419.15 = 65,186.10/x
  3. Step 3: Cross multiply
    214,944.30x = 322,419.15 × 65,186.10
  4. Step 4: Simplify right side
    214,944.30x = 21,017,246,953.82
  5. Step 5: Solve for x
    x = 21,017,246,953.82/214,944.30
  6. Step 6: Final answer
    x = 97,779.97

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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.