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Finding the Fourth Proportional to 128,098.84, 192,150.57 and 39,353.14

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Solution

The fourth proportional to 128,098.84, 192,150.57 and 39,353.14 is: 59,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,098.84 : 192,150.57 = 39,353.14 : x
  2. Step 2: Convert to fraction form
    128,098.84/192,150.57 = 39,353.14/x
  3. Step 3: Cross multiply
    128,098.84x = 192,150.57 × 39,353.14
  4. Step 4: Simplify right side
    128,098.84x = 7,561,728,282.29
  5. Step 5: Solve for x
    x = 7,561,728,282.29/128,098.84
  6. Step 6: Final answer
    x = 59,030.42

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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.