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Finding the Fourth Proportional to 119,651.94, 165,122.76 and 65,937.60

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Solution

The fourth proportional to 119,651.94, 165,122.76 and 65,937.60 is: 90,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,651.94 : 165,122.76 = 65,937.60 : x
  2. Step 2: Convert to fraction form
    119,651.94/165,122.76 = 65,937.60/x
  3. Step 3: Cross multiply
    119,651.94x = 165,122.76 × 65,937.60
  4. Step 4: Simplify right side
    119,651.94x = 10,887,798,499.78
  5. Step 5: Solve for x
    x = 10,887,798,499.78/119,651.94
  6. Step 6: Final answer
    x = 90,995.59

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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.