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Finding the Fourth Proportional to 119,576.35, 165,013.20 and 65,866.37

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Solution

The fourth proportional to 119,576.35, 165,013.20 and 65,866.37 is: 90,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,576.35 : 165,013.20 = 65,866.37 : x
  2. Step 2: Convert to fraction form
    119,576.35/165,013.20 = 65,866.37/x
  3. Step 3: Cross multiply
    119,576.35x = 165,013.20 × 65,866.37
  4. Step 4: Simplify right side
    119,576.35x = 10,868,819,661.02
  5. Step 5: Solve for x
    x = 10,868,819,661.02/119,576.35
  6. Step 6: Final answer
    x = 90,894.39

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1.5x scale

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.