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Finding the Fourth Proportional to 64,847.40, 97,328.70 and 56,092.20

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Solution

The fourth proportional to 64,847.40, 97,328.70 and 56,092.20 is: 84,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,847.40 : 97,328.70 = 56,092.20 : x
  2. Step 2: Convert to fraction form
    64,847.40/97,328.70 = 56,092.20/x
  3. Step 3: Cross multiply
    64,847.40x = 97,328.70 × 56,092.20
  4. Step 4: Simplify right side
    64,847.40x = 5,459,380,906.14
  5. Step 5: Solve for x
    x = 5,459,380,906.14/64,847.40
  6. Step 6: Final answer
    x = 84,188.12

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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.