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Finding the Fourth Proportional to 88,102.76, 121,682.71 and 58,022.54

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Solution

The fourth proportional to 88,102.76, 121,682.71 and 58,022.54 is: 80,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,102.76 : 121,682.71 = 58,022.54 : x
  2. Step 2: Convert to fraction form
    88,102.76/121,682.71 = 58,022.54/x
  3. Step 3: Cross multiply
    88,102.76x = 121,682.71 × 58,022.54
  4. Step 4: Simplify right side
    88,102.76x = 7,060,339,908.28
  5. Step 5: Solve for x
    x = 7,060,339,908.28/88,102.76
  6. Step 6: Final answer
    x = 80,137.56

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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.