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Finding the Fourth Proportional to 93,190.61, 128,604.52 and 50,749.11

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Solution

The fourth proportional to 93,190.61, 128,604.52 and 50,749.11 is: 70,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,190.61 : 128,604.52 = 50,749.11 : x
  2. Step 2: Convert to fraction form
    93,190.61/128,604.52 = 50,749.11/x
  3. Step 3: Cross multiply
    93,190.61x = 128,604.52 × 50,749.11
  4. Step 4: Simplify right side
    93,190.61x = 6,526,564,995.41
  5. Step 5: Solve for x
    x = 6,526,564,995.41/93,190.61
  6. Step 6: Final answer
    x = 70,034.58

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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.