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Finding the Fourth Proportional to 117,800.91, 162,550.44 and 79,643.52

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Solution

The fourth proportional to 117,800.91, 162,550.44 and 79,643.52 is: 109,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,800.91 : 162,550.44 = 79,643.52 : x
  2. Step 2: Convert to fraction form
    117,800.91/162,550.44 = 79,643.52/x
  3. Step 3: Cross multiply
    117,800.91x = 162,550.44 × 79,643.52
  4. Step 4: Simplify right side
    117,800.91x = 12,946,089,219.15
  5. Step 5: Solve for x
    x = 12,946,089,219.15/117,800.91
  6. Step 6: Final answer
    x = 109,898.04

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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.