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Finding the Fourth Proportional to 88,366.70, 121,936.92 and 50,118.50

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Solution

The fourth proportional to 88,366.70, 121,936.92 and 50,118.50 is: 69,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,366.70 : 121,936.92 = 50,118.50 : x
  2. Step 2: Convert to fraction form
    88,366.70/121,936.92 = 50,118.50/x
  3. Step 3: Cross multiply
    88,366.70x = 121,936.92 × 50,118.50
  4. Step 4: Simplify right side
    88,366.70x = 6,111,295,525.02
  5. Step 5: Solve for x
    x = 6,111,295,525.02/88,366.70
  6. Step 6: Final answer
    x = 69,158.35

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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.