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Finding the Fourth Proportional to 185,431.92, 255,801.72 and 117,334.08

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Solution

The fourth proportional to 185,431.92, 255,801.72 and 117,334.08 is: 161,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,431.92 : 255,801.72 = 117,334.08 : x
  2. Step 2: Convert to fraction form
    185,431.92/255,801.72 = 117,334.08/x
  3. Step 3: Cross multiply
    185,431.92x = 255,801.72 × 117,334.08
  4. Step 4: Simplify right side
    185,431.92x = 30,014,259,478.62
  5. Step 5: Solve for x
    x = 30,014,259,478.62/185,431.92
  6. Step 6: Final answer
    x = 161,861.34

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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.