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Finding the Fourth Proportional to 119,288.43, 164,618.20 and 65,573.77

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Solution

The fourth proportional to 119,288.43, 164,618.20 and 65,573.77 is: 90,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,288.43 : 164,618.20 = 65,573.77 : x
  2. Step 2: Convert to fraction form
    119,288.43/164,618.20 = 65,573.77/x
  3. Step 3: Cross multiply
    119,288.43x = 164,618.20 × 65,573.77
  4. Step 4: Simplify right side
    119,288.43x = 10,794,635,984.61
  5. Step 5: Solve for x
    x = 10,794,635,984.61/119,288.43
  6. Step 6: Final answer
    x = 90,491.89

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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.