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Finding the Fourth Proportional to 191,710.48, 264,562.20 and 105,672.56

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Solution

The fourth proportional to 191,710.48, 264,562.20 and 105,672.56 is: 145,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,710.48 : 264,562.20 = 105,672.56 : x
  2. Step 2: Convert to fraction form
    191,710.48/264,562.20 = 105,672.56/x
  3. Step 3: Cross multiply
    191,710.48x = 264,562.20 × 105,672.56
  4. Step 4: Simplify right side
    191,710.48x = 27,956,964,953.23
  5. Step 5: Solve for x
    x = 27,956,964,953.23/191,710.48
  6. Step 6: Final answer
    x = 145,829.09

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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.