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Finding the Fourth Proportional to 358,957.73, 538,645.91 and 134,475.86

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Solution

The fourth proportional to 358,957.73, 538,645.91 and 134,475.86 is: 201,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,957.73 : 538,645.91 = 134,475.86 : x
  2. Step 2: Convert to fraction form
    358,957.73/538,645.91 = 134,475.86/x
  3. Step 3: Cross multiply
    358,957.73x = 538,645.91 × 134,475.86
  4. Step 4: Simplify right side
    358,957.73x = 72,434,871,982.73
  5. Step 5: Solve for x
    x = 72,434,871,982.73/358,957.73
  6. Step 6: Final answer
    x = 201,792.21

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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.