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Finding the Fourth Proportional to 191,663.88, 264,485.14 and 109,974.84

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Solution

The fourth proportional to 191,663.88, 264,485.14 and 109,974.84 is: 151,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,663.88 : 264,485.14 = 109,974.84 : x
  2. Step 2: Convert to fraction form
    191,663.88/264,485.14 = 109,974.84/x
  3. Step 3: Cross multiply
    191,663.88x = 264,485.14 × 109,974.84
  4. Step 4: Simplify right side
    191,663.88x = 29,086,710,953.88
  5. Step 5: Solve for x
    x = 29,086,710,953.88/191,663.88
  6. Step 6: Final answer
    x = 151,758.96

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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.