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Finding the Fourth Proportional to 205,331.40, 307,766.70 and 116,627.40

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Solution

The fourth proportional to 205,331.40, 307,766.70 and 116,627.40 is: 174,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,331.40 : 307,766.70 = 116,627.40 : x
  2. Step 2: Convert to fraction form
    205,331.40/307,766.70 = 116,627.40/x
  3. Step 3: Cross multiply
    205,331.40x = 307,766.70 × 116,627.40
  4. Step 4: Simplify right side
    205,331.40x = 35,894,030,027.58
  5. Step 5: Solve for x
    x = 35,894,030,027.58/205,331.40
  6. Step 6: Final answer
    x = 174,810.23

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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.