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Finding the Fourth Proportional to 159,866.69, 220,681.73 and 109,047.17

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Solution

The fourth proportional to 159,866.69, 220,681.73 and 109,047.17 is: 150,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,866.69 : 220,681.73 = 109,047.17 : x
  2. Step 2: Convert to fraction form
    159,866.69/220,681.73 = 109,047.17/x
  3. Step 3: Cross multiply
    159,866.69x = 220,681.73 × 109,047.17
  4. Step 4: Simplify right side
    159,866.69x = 24,064,717,581.97
  5. Step 5: Solve for x
    x = 24,064,717,581.97/159,866.69
  6. Step 6: Final answer
    x = 150,529.90

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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.