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Finding the Fourth Proportional to 114,398.78, 171,570.84 and 39,521.60

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Solution

The fourth proportional to 114,398.78, 171,570.84 and 39,521.60 is: 59,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,398.78 : 171,570.84 = 39,521.60 : x
  2. Step 2: Convert to fraction form
    114,398.78/171,570.84 = 39,521.60/x
  3. Step 3: Cross multiply
    114,398.78x = 171,570.84 × 39,521.60
  4. Step 4: Simplify right side
    114,398.78x = 6,780,754,110.14
  5. Step 5: Solve for x
    x = 6,780,754,110.14/114,398.78
  6. Step 6: Final answer
    x = 59,272.96

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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.