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Finding the Fourth Proportional to 133,669.86, 200,535.78 and 38,902.32

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Solution

The fourth proportional to 133,669.86, 200,535.78 and 38,902.32 is: 58,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,669.86 : 200,535.78 = 38,902.32 : x
  2. Step 2: Convert to fraction form
    133,669.86/200,535.78 = 38,902.32/x
  3. Step 3: Cross multiply
    133,669.86x = 200,535.78 × 38,902.32
  4. Step 4: Simplify right side
    133,669.86x = 7,801,307,085.01
  5. Step 5: Solve for x
    x = 7,801,307,085.01/133,669.86
  6. Step 6: Final answer
    x = 58,362.50

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1.5x scale

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.