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Finding the Fourth Proportional to 119,570.92, 165,007.86 and 65,855.48

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Solution

The fourth proportional to 119,570.92, 165,007.86 and 65,855.48 is: 90,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,570.92 : 165,007.86 = 65,855.48 : x
  2. Step 2: Convert to fraction form
    119,570.92/165,007.86 = 65,855.48/x
  3. Step 3: Cross multiply
    119,570.92x = 165,007.86 × 65,855.48
  4. Step 4: Simplify right side
    119,570.92x = 10,866,671,824.07
  5. Step 5: Solve for x
    x = 10,866,671,824.07/119,570.92
  6. Step 6: Final answer
    x = 90,880.56

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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.