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Finding the Fourth Proportional to 99,228.38, 136,935.16 and 54,516.38

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Solution

The fourth proportional to 99,228.38, 136,935.16 and 54,516.38 is: 75,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,228.38 : 136,935.16 = 54,516.38 : x
  2. Step 2: Convert to fraction form
    99,228.38/136,935.16 = 54,516.38/x
  3. Step 3: Cross multiply
    99,228.38x = 136,935.16 × 54,516.38
  4. Step 4: Simplify right side
    99,228.38x = 7,465,208,396.95
  5. Step 5: Solve for x
    x = 7,465,208,396.95/99,228.38
  6. Step 6: Final answer
    x = 75,232.60

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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.