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Finding the Fourth Proportional to 64,753.02, 97,129.53 and 61,098.30

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Solution

The fourth proportional to 64,753.02, 97,129.53 and 61,098.30 is: 91,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.02 : 97,129.53 = 61,098.30 : x
  2. Step 2: Convert to fraction form
    64,753.02/97,129.53 = 61,098.30/x
  3. Step 3: Cross multiply
    64,753.02x = 97,129.53 × 61,098.30
  4. Step 4: Simplify right side
    64,753.02x = 5,934,449,162.80
  5. Step 5: Solve for x
    x = 5,934,449,162.80/64,753.02
  6. Step 6: Final answer
    x = 91,647.45

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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.