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Finding the Fourth Proportional to 64,879.40, 97,319.10 and 41,532.20

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Solution

The fourth proportional to 64,879.40, 97,319.10 and 41,532.20 is: 62,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.40 : 97,319.10 = 41,532.20 : x
  2. Step 2: Convert to fraction form
    64,879.40/97,319.10 = 41,532.20/x
  3. Step 3: Cross multiply
    64,879.40x = 97,319.10 × 41,532.20
  4. Step 4: Simplify right side
    64,879.40x = 4,041,876,325.02
  5. Step 5: Solve for x
    x = 4,041,876,325.02/64,879.40
  6. Step 6: Final answer
    x = 62,298.30

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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.