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Finding the Fourth Proportional to 79,663.05, 119,510.91 and 66,606.66

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Solution

The fourth proportional to 79,663.05, 119,510.91 and 66,606.66 is: 99,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,663.05 : 119,510.91 = 66,606.66 : x
  2. Step 2: Convert to fraction form
    79,663.05/119,510.91 = 66,606.66/x
  3. Step 3: Cross multiply
    79,663.05x = 119,510.91 × 66,606.66
  4. Step 4: Simplify right side
    79,663.05x = 7,960,222,548.66
  5. Step 5: Solve for x
    x = 7,960,222,548.66/79,663.05
  6. Step 6: Final answer
    x = 99,923.65

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1.5x scale

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.