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Finding the Fourth Proportional to 114,570.41, 171,814.62 and 39,670.45

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Solution

The fourth proportional to 114,570.41, 171,814.62 and 39,670.45 is: 59,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,570.41 : 171,814.62 = 39,670.45 : x
  2. Step 2: Convert to fraction form
    114,570.41/171,814.62 = 39,670.45/x
  3. Step 3: Cross multiply
    114,570.41x = 171,814.62 × 39,670.45
  4. Step 4: Simplify right side
    114,570.41x = 6,815,962,862.44
  5. Step 5: Solve for x
    x = 6,815,962,862.44/114,570.41
  6. Step 6: Final answer
    x = 59,491.48

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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.