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Finding the Fourth Proportional to 117,458.76, 162,101.07 and 66,471.48

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Solution

The fourth proportional to 117,458.76, 162,101.07 and 66,471.48 is: 91,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,458.76 : 162,101.07 = 66,471.48 : x
  2. Step 2: Convert to fraction form
    117,458.76/162,101.07 = 66,471.48/x
  3. Step 3: Cross multiply
    117,458.76x = 162,101.07 × 66,471.48
  4. Step 4: Simplify right side
    117,458.76x = 10,775,098,032.48
  5. Step 5: Solve for x
    x = 10,775,098,032.48/117,458.76
  6. Step 6: Final answer
    x = 91,735.16

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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.