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Finding the Fourth Proportional to 487,496.45, 731,260.85 and 167,645.18

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Solution

The fourth proportional to 487,496.45, 731,260.85 and 167,645.18 is: 251,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,496.45 : 731,260.85 = 167,645.18 : x
  2. Step 2: Convert to fraction form
    487,496.45/731,260.85 = 167,645.18/x
  3. Step 3: Cross multiply
    487,496.45x = 731,260.85 × 167,645.18
  4. Step 4: Simplify right side
    487,496.45x = 122,592,353,588.01
  5. Step 5: Solve for x
    x = 122,592,353,588.01/487,496.45
  6. Step 6: Final answer
    x = 251,473.33

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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.