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Finding the Fourth Proportional to 117,789.51, 162,512.84 and 66,798.24

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Solution

The fourth proportional to 117,789.51, 162,512.84 and 66,798.24 is: 92,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,789.51 : 162,512.84 = 66,798.24 : x
  2. Step 2: Convert to fraction form
    117,789.51/162,512.84 = 66,798.24/x
  3. Step 3: Cross multiply
    117,789.51x = 162,512.84 × 66,798.24
  4. Step 4: Simplify right side
    117,789.51x = 10,855,571,689.40
  5. Step 5: Solve for x
    x = 10,855,571,689.40/117,789.51
  6. Step 6: Final answer
    x = 92,160.77

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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.