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Finding the Fourth Proportional to 269,332.80, 403,996.70 and 103,120.80

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Solution

The fourth proportional to 269,332.80, 403,996.70 and 103,120.80 is: 154,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,332.80 : 403,996.70 = 103,120.80 : x
  2. Step 2: Convert to fraction form
    269,332.80/403,996.70 = 103,120.80/x
  3. Step 3: Cross multiply
    269,332.80x = 403,996.70 × 103,120.80
  4. Step 4: Simplify right side
    269,332.80x = 41,660,462,901.36
  5. Step 5: Solve for x
    x = 41,660,462,901.36/269,332.80
  6. Step 6: Final answer
    x = 154,680.24

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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.