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Finding the Fourth Proportional to 98,794.92, 136,334.32 and 56,352.56

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Solution

The fourth proportional to 98,794.92, 136,334.32 and 56,352.56 is: 77,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,794.92 : 136,334.32 = 56,352.56 : x
  2. Step 2: Convert to fraction form
    98,794.92/136,334.32 = 56,352.56/x
  3. Step 3: Cross multiply
    98,794.92x = 136,334.32 × 56,352.56
  4. Step 4: Simplify right side
    98,794.92x = 7,682,787,947.86
  5. Step 5: Solve for x
    x = 7,682,787,947.86/98,794.92
  6. Step 6: Final answer
    x = 77,765.01

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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.