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Finding the Fourth Proportional to 93,309.59, 128,768.55 and 50,868.11

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Solution

The fourth proportional to 93,309.59, 128,768.55 and 50,868.11 is: 70,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,309.59 : 128,768.55 = 50,868.11 : x
  2. Step 2: Convert to fraction form
    93,309.59/128,768.55 = 50,868.11/x
  3. Step 3: Cross multiply
    93,309.59x = 128,768.55 × 50,868.11
  4. Step 4: Simplify right side
    93,309.59x = 6,550,212,765.94
  5. Step 5: Solve for x
    x = 6,550,212,765.94/93,309.59
  6. Step 6: Final answer
    x = 70,198.71

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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.