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Finding the Fourth Proportional to 64,990.10, 97,410.42 and 29,855.94

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Solution

The fourth proportional to 64,990.10, 97,410.42 and 29,855.94 is: 44,749.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,990.10 : 97,410.42 = 29,855.94 : x
  2. Step 2: Convert to fraction form
    64,990.10/97,410.42 = 29,855.94/x
  3. Step 3: Cross multiply
    64,990.10x = 97,410.42 × 29,855.94
  4. Step 4: Simplify right side
    64,990.10x = 2,908,279,654.89
  5. Step 5: Solve for x
    x = 2,908,279,654.89/64,990.10
  6. Step 6: Final answer
    x = 44,749.58

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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.