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Finding the Fourth Proportional to 302,491.46, 453,749.72 and 89,259.38

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Solution

The fourth proportional to 302,491.46, 453,749.72 and 89,259.38 is: 133,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,491.46 : 453,749.72 = 89,259.38 : x
  2. Step 2: Convert to fraction form
    302,491.46/453,749.72 = 89,259.38/x
  3. Step 3: Cross multiply
    302,491.46x = 453,749.72 × 89,259.38
  4. Step 4: Simplify right side
    302,491.46x = 40,501,415,967.33
  5. Step 5: Solve for x
    x = 40,501,415,967.33/302,491.46
  6. Step 6: Final answer
    x = 133,892.76

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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.