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Finding the Fourth Proportional to 64,760.99, 97,160.85 and 39,143.93

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Solution

The fourth proportional to 64,760.99, 97,160.85 and 39,143.93 is: 58,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,760.99 : 97,160.85 = 39,143.93 : x
  2. Step 2: Convert to fraction form
    64,760.99/97,160.85 = 39,143.93/x
  3. Step 3: Cross multiply
    64,760.99x = 97,160.85 × 39,143.93
  4. Step 4: Simplify right side
    64,760.99x = 3,803,257,025.34
  5. Step 5: Solve for x
    x = 3,803,257,025.34/64,760.99
  6. Step 6: Final answer
    x = 58,727.60

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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.