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Finding the Fourth Proportional to 66,569.72, 99,855.52 and 37,174.61

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Solution

The fourth proportional to 66,569.72, 99,855.52 and 37,174.61 is: 55,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,569.72 : 99,855.52 = 37,174.61 : x
  2. Step 2: Convert to fraction form
    66,569.72/99,855.52 = 37,174.61/x
  3. Step 3: Cross multiply
    66,569.72x = 99,855.52 × 37,174.61
  4. Step 4: Simplify right side
    66,569.72x = 3,712,090,169.05
  5. Step 5: Solve for x
    x = 3,712,090,169.05/66,569.72
  6. Step 6: Final answer
    x = 55,762.45

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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.