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Finding the Fourth Proportional to 119,339.01, 164,686.23 and 65,620.80

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Solution

The fourth proportional to 119,339.01, 164,686.23 and 65,620.80 is: 90,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,339.01 : 164,686.23 = 65,620.80 : x
  2. Step 2: Convert to fraction form
    119,339.01/164,686.23 = 65,620.80/x
  3. Step 3: Cross multiply
    119,339.01x = 164,686.23 × 65,620.80
  4. Step 4: Simplify right side
    119,339.01x = 10,806,842,161.58
  5. Step 5: Solve for x
    x = 10,806,842,161.58/119,339.01
  6. Step 6: Final answer
    x = 90,555.82

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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.