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Finding the Fourth Proportional to 149,590.60, 206,414.60 and 85,928.39

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Solution

The fourth proportional to 149,590.60, 206,414.60 and 85,928.39 is: 118,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,590.60 : 206,414.60 = 85,928.39 : x
  2. Step 2: Convert to fraction form
    149,590.60/206,414.60 = 85,928.39/x
  3. Step 3: Cross multiply
    149,590.60x = 206,414.60 × 85,928.39
  4. Step 4: Simplify right side
    149,590.60x = 17,736,875,448.94
  5. Step 5: Solve for x
    x = 17,736,875,448.94/149,590.60
  6. Step 6: Final answer
    x = 118,569.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.