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Finding the Fourth Proportional to 217,832.76, 300,641.76 and 132,999.12

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Solution

The fourth proportional to 217,832.76, 300,641.76 and 132,999.12 is: 183,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,832.76 : 300,641.76 = 132,999.12 : x
  2. Step 2: Convert to fraction form
    217,832.76/300,641.76 = 132,999.12/x
  3. Step 3: Cross multiply
    217,832.76x = 300,641.76 × 132,999.12
  4. Step 4: Simplify right side
    217,832.76x = 39,985,089,515.25
  5. Step 5: Solve for x
    x = 39,985,089,515.25/217,832.76
  6. Step 6: Final answer
    x = 183,558.66

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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.