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Finding the Fourth Proportional to 117,743.49, 162,486.78 and 64,029.09

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Solution

The fourth proportional to 117,743.49, 162,486.78 and 64,029.09 is: 88,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,743.49 : 162,486.78 = 64,029.09 : x
  2. Step 2: Convert to fraction form
    117,743.49/162,486.78 = 64,029.09/x
  3. Step 3: Cross multiply
    117,743.49x = 162,486.78 × 64,029.09
  4. Step 4: Simplify right side
    117,743.49x = 10,403,880,660.43
  5. Step 5: Solve for x
    x = 10,403,880,660.43/117,743.49
  6. Step 6: Final answer
    x = 88,360.56

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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.