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Finding the Fourth Proportional to 117,682, 162,424.74 and 69,926.08

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Solution

The fourth proportional to 117,682, 162,424.74 and 69,926.08 is: 96,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,682 : 162,424.74 = 69,926.08 : x
  2. Step 2: Convert to fraction form
    117,682/162,424.74 = 69,926.08/x
  3. Step 3: Cross multiply
    117,682x = 162,424.74 × 69,926.08
  4. Step 4: Simplify right side
    117,682x = 11,357,725,363.22
  5. Step 5: Solve for x
    x = 11,357,725,363.22/117,682
  6. Step 6: Final answer
    x = 96,512.00

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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.