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Finding the Fourth Proportional to 97,317.60, 146,014.80 and 38,143.20

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Solution

The fourth proportional to 97,317.60, 146,014.80 and 38,143.20 is: 57,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,317.60 : 146,014.80 = 38,143.20 : x
  2. Step 2: Convert to fraction form
    97,317.60/146,014.80 = 38,143.20/x
  3. Step 3: Cross multiply
    97,317.60x = 146,014.80 × 38,143.20
  4. Step 4: Simplify right side
    97,317.60x = 5,569,471,719.36
  5. Step 5: Solve for x
    x = 5,569,471,719.36/97,317.60
  6. Step 6: Final answer
    x = 57,229.85

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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.