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Finding the Fourth Proportional to 114,430.39, 171,603.45 and 39,531.31

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Solution

The fourth proportional to 114,430.39, 171,603.45 and 39,531.31 is: 59,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,430.39 : 171,603.45 = 39,531.31 : x
  2. Step 2: Convert to fraction form
    114,430.39/171,603.45 = 39,531.31/x
  3. Step 3: Cross multiply
    114,430.39x = 171,603.45 × 39,531.31
  4. Step 4: Simplify right side
    114,430.39x = 6,783,709,179.02
  5. Step 5: Solve for x
    x = 6,783,709,179.02/114,430.39
  6. Step 6: Final answer
    x = 59,282.41

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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.