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Finding the Fourth Proportional to 97,460.40, 146,579.40 and 87,351.60

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Solution

The fourth proportional to 97,460.40, 146,579.40 and 87,351.60 is: 131,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,460.40 : 146,579.40 = 87,351.60 : x
  2. Step 2: Convert to fraction form
    97,460.40/146,579.40 = 87,351.60/x
  3. Step 3: Cross multiply
    97,460.40x = 146,579.40 × 87,351.60
  4. Step 4: Simplify right side
    97,460.40x = 12,803,945,117.04
  5. Step 5: Solve for x
    x = 12,803,945,117.04/97,460.40
  6. Step 6: Final answer
    x = 131,375.87

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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.