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Finding the Fourth Proportional to 205,510.76, 283,491.30 and 167,311.40

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Solution

The fourth proportional to 205,510.76, 283,491.30 and 167,311.40 is: 230,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,510.76 : 283,491.30 = 167,311.40 : x
  2. Step 2: Convert to fraction form
    205,510.76/283,491.30 = 167,311.40/x
  3. Step 3: Cross multiply
    205,510.76x = 283,491.30 × 167,311.40
  4. Step 4: Simplify right side
    205,510.76x = 47,431,326,290.82
  5. Step 5: Solve for x
    x = 47,431,326,290.82/205,510.76
  6. Step 6: Final answer
    x = 230,797.29

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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.