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Finding the Fourth Proportional to 117,813.64, 162,520.86 and 70,033

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Solution

The fourth proportional to 117,813.64, 162,520.86 and 70,033 is: 96,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,813.64 : 162,520.86 = 70,033 : x
  2. Step 2: Convert to fraction form
    117,813.64/162,520.86 = 70,033/x
  3. Step 3: Cross multiply
    117,813.64x = 162,520.86 × 70,033
  4. Step 4: Simplify right side
    117,813.64x = 11,381,823,388.38
  5. Step 5: Solve for x
    x = 11,381,823,388.38/117,813.64
  6. Step 6: Final answer
    x = 96,608.71

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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.