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Finding the Fourth Proportional to 99,595.36, 137,442 and 54,883.36

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Solution

The fourth proportional to 99,595.36, 137,442 and 54,883.36 is: 75,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,595.36 : 137,442 = 54,883.36 : x
  2. Step 2: Convert to fraction form
    99,595.36/137,442 = 54,883.36/x
  3. Step 3: Cross multiply
    99,595.36x = 137,442 × 54,883.36
  4. Step 4: Simplify right side
    99,595.36x = 7,543,278,765.12
  5. Step 5: Solve for x
    x = 7,543,278,765.12/99,595.36
  6. Step 6: Final answer
    x = 75,739.26

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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.