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Finding the Fourth Proportional to 117,508.92, 162,102.24 and 75,022.80

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Solution

The fourth proportional to 117,508.92, 162,102.24 and 75,022.80 is: 103,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,508.92 : 162,102.24 = 75,022.80 : x
  2. Step 2: Convert to fraction form
    117,508.92/162,102.24 = 75,022.80/x
  3. Step 3: Cross multiply
    117,508.92x = 162,102.24 × 75,022.80
  4. Step 4: Simplify right side
    117,508.92x = 12,161,363,931.07
  5. Step 5: Solve for x
    x = 12,161,363,931.07/117,508.92
  6. Step 6: Final answer
    x = 103,493.11

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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.