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Finding the Fourth Proportional to 302,015.70, 453,023.55 and 91,664.10

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Solution

The fourth proportional to 302,015.70, 453,023.55 and 91,664.10 is: 137,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,015.70 : 453,023.55 = 91,664.10 : x
  2. Step 2: Convert to fraction form
    302,015.70/453,023.55 = 91,664.10/x
  3. Step 3: Cross multiply
    302,015.70x = 453,023.55 × 91,664.10
  4. Step 4: Simplify right side
    302,015.70x = 41,525,995,989.56
  5. Step 5: Solve for x
    x = 41,525,995,989.56/302,015.70
  6. Step 6: Final answer
    x = 137,496.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.