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Finding the Fourth Proportional to 109,955.24, 151,761.94 and 66,948.94

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Solution

The fourth proportional to 109,955.24, 151,761.94 and 66,948.94 is: 92,403.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,955.24 : 151,761.94 = 66,948.94 : x
  2. Step 2: Convert to fraction form
    109,955.24/151,761.94 = 66,948.94/x
  3. Step 3: Cross multiply
    109,955.24x = 151,761.94 × 66,948.94
  4. Step 4: Simplify right side
    109,955.24x = 10,160,301,015.34
  5. Step 5: Solve for x
    x = 10,160,301,015.34/109,955.24
  6. Step 6: Final answer
    x = 92,403.97

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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.