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Finding the Fourth Proportional to 119,574.74, 165,007.10 and 65,858.60

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Solution

The fourth proportional to 119,574.74, 165,007.10 and 65,858.60 is: 90,881.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,574.74 : 165,007.10 = 65,858.60 : x
  2. Step 2: Convert to fraction form
    119,574.74/165,007.10 = 65,858.60/x
  3. Step 3: Cross multiply
    119,574.74x = 165,007.10 × 65,858.60
  4. Step 4: Simplify right side
    119,574.74x = 10,867,136,639.94
  5. Step 5: Solve for x
    x = 10,867,136,639.94/119,574.74
  6. Step 6: Final answer
    x = 90,881.54

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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.