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Finding the Fourth Proportional to 158,661.10, 237,984.90 and 53,479.90

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Solution

The fourth proportional to 158,661.10, 237,984.90 and 53,479.90 is: 80,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,661.10 : 237,984.90 = 53,479.90 : x
  2. Step 2: Convert to fraction form
    158,661.10/237,984.90 = 53,479.90/x
  3. Step 3: Cross multiply
    158,661.10x = 237,984.90 × 53,479.90
  4. Step 4: Simplify right side
    158,661.10x = 12,727,408,653.51
  5. Step 5: Solve for x
    x = 12,727,408,653.51/158,661.10
  6. Step 6: Final answer
    x = 80,217.57

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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.