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Finding the Fourth Proportional to 85,544.66, 128,226.78 and 35,574.46

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Solution

The fourth proportional to 85,544.66, 128,226.78 and 35,574.46 is: 53,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,544.66 : 128,226.78 = 35,574.46 : x
  2. Step 2: Convert to fraction form
    85,544.66/128,226.78 = 35,574.46/x
  3. Step 3: Cross multiply
    85,544.66x = 128,226.78 × 35,574.46
  4. Step 4: Simplify right side
    85,544.66x = 4,561,598,135.47
  5. Step 5: Solve for x
    x = 4,561,598,135.47/85,544.66
  6. Step 6: Final answer
    x = 53,324.17

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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.