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Finding the Fourth Proportional to 82,770.66, 124,205.20 and 43,339.05

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Solution

The fourth proportional to 82,770.66, 124,205.20 and 43,339.05 is: 65,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,770.66 : 124,205.20 = 43,339.05 : x
  2. Step 2: Convert to fraction form
    82,770.66/124,205.20 = 43,339.05/x
  3. Step 3: Cross multiply
    82,770.66x = 124,205.20 × 43,339.05
  4. Step 4: Simplify right side
    82,770.66x = 5,382,935,264.71
  5. Step 5: Solve for x
    x = 5,382,935,264.71/82,770.66
  6. Step 6: Final answer
    x = 65,034.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.