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Finding the Fourth Proportional to 109,911.96, 151,678.50 and 59,610.96

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Solution

The fourth proportional to 109,911.96, 151,678.50 and 59,610.96 is: 82,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,911.96 : 151,678.50 = 59,610.96 : x
  2. Step 2: Convert to fraction form
    109,911.96/151,678.50 = 59,610.96/x
  3. Step 3: Cross multiply
    109,911.96x = 151,678.50 × 59,610.96
  4. Step 4: Simplify right side
    109,911.96x = 9,041,700,996.36
  5. Step 5: Solve for x
    x = 9,041,700,996.36/109,911.96
  6. Step 6: Final answer
    x = 82,263.12

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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.