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Finding the Fourth Proportional to 119,387.12, 164,754.61 and 65,676.22

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Solution

The fourth proportional to 119,387.12, 164,754.61 and 65,676.22 is: 90,633.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,387.12 : 164,754.61 = 65,676.22 : x
  2. Step 2: Convert to fraction form
    119,387.12/164,754.61 = 65,676.22/x
  3. Step 3: Cross multiply
    119,387.12x = 164,754.61 × 65,676.22
  4. Step 4: Simplify right side
    119,387.12x = 10,820,459,436.30
  5. Step 5: Solve for x
    x = 10,820,459,436.30/119,387.12
  6. Step 6: Final answer
    x = 90,633.39

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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.