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Finding the Fourth Proportional to 128,372.14, 192,502.02 and 60,923.50

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Solution

The fourth proportional to 128,372.14, 192,502.02 and 60,923.50 is: 91,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,372.14 : 192,502.02 = 60,923.50 : x
  2. Step 2: Convert to fraction form
    128,372.14/192,502.02 = 60,923.50/x
  3. Step 3: Cross multiply
    128,372.14x = 192,502.02 × 60,923.50
  4. Step 4: Simplify right side
    128,372.14x = 11,727,896,815.47
  5. Step 5: Solve for x
    x = 11,727,896,815.47/128,372.14
  6. Step 6: Final answer
    x = 91,358.58

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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.