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Finding the Fourth Proportional to 119,710.46, 165,201.71 and 65,997.40

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Solution

The fourth proportional to 119,710.46, 165,201.71 and 65,997.40 is: 91,077.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,710.46 : 165,201.71 = 65,997.40 : x
  2. Step 2: Convert to fraction form
    119,710.46/165,201.71 = 65,997.40/x
  3. Step 3: Cross multiply
    119,710.46x = 165,201.71 × 65,997.40
  4. Step 4: Simplify right side
    119,710.46x = 10,902,882,437.39
  5. Step 5: Solve for x
    x = 10,902,882,437.39/119,710.46
  6. Step 6: Final answer
    x = 91,077.11

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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.