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Finding the Fourth Proportional to 117,005.92, 161,468.24 and 66,029.51

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Solution

The fourth proportional to 117,005.92, 161,468.24 and 66,029.51 is: 91,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.92 : 161,468.24 = 66,029.51 : x
  2. Step 2: Convert to fraction form
    117,005.92/161,468.24 = 66,029.51/x
  3. Step 3: Cross multiply
    117,005.92x = 161,468.24 × 66,029.51
  4. Step 4: Simplify right side
    117,005.92x = 10,661,668,841.29
  5. Step 5: Solve for x
    x = 10,661,668,841.29/117,005.92
  6. Step 6: Final answer
    x = 91,120.77

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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.