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Finding the Fourth Proportional to 167,248.39, 250,978.35 and 87,430.41

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Solution

The fourth proportional to 167,248.39, 250,978.35 and 87,430.41 is: 131,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,248.39 : 250,978.35 = 87,430.41 : x
  2. Step 2: Convert to fraction form
    167,248.39/250,978.35 = 87,430.41/x
  3. Step 3: Cross multiply
    167,248.39x = 250,978.35 × 87,430.41
  4. Step 4: Simplify right side
    167,248.39x = 21,943,139,823.05
  5. Step 5: Solve for x
    x = 21,943,139,823.05/167,248.39
  6. Step 6: Final answer
    x = 131,200.90

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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.