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Finding the Fourth Proportional to 64,946.80, 97,420.20 and 41,327.20

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Solution

The fourth proportional to 64,946.80, 97,420.20 and 41,327.20 is: 61,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,946.80 : 97,420.20 = 41,327.20 : x
  2. Step 2: Convert to fraction form
    64,946.80/97,420.20 = 41,327.20/x
  3. Step 3: Cross multiply
    64,946.80x = 97,420.20 × 41,327.20
  4. Step 4: Simplify right side
    64,946.80x = 4,026,104,089.44
  5. Step 5: Solve for x
    x = 4,026,104,089.44/64,946.80
  6. Step 6: Final answer
    x = 61,990.80

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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.