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Finding the Fourth Proportional to 64,921.77, 97,284.15 and 48,203.55

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Solution

The fourth proportional to 64,921.77, 97,284.15 and 48,203.55 is: 72,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,921.77 : 97,284.15 = 48,203.55 : x
  2. Step 2: Convert to fraction form
    64,921.77/97,284.15 = 48,203.55/x
  3. Step 3: Cross multiply
    64,921.77x = 97,284.15 × 48,203.55
  4. Step 4: Simplify right side
    64,921.77x = 4,689,441,388.73
  5. Step 5: Solve for x
    x = 4,689,441,388.73/64,921.77
  6. Step 6: Final answer
    x = 72,232.19

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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.