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Finding the Fourth Proportional to 325,810.27, 488,649.79 and 89,176.87

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Solution

The fourth proportional to 325,810.27, 488,649.79 and 89,176.87 is: 133,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,810.27 : 488,649.79 = 89,176.87 : x
  2. Step 2: Convert to fraction form
    325,810.27/488,649.79 = 89,176.87/x
  3. Step 3: Cross multiply
    325,810.27x = 488,649.79 × 89,176.87
  4. Step 4: Simplify right side
    325,810.27x = 43,576,258,798.36
  5. Step 5: Solve for x
    x = 43,576,258,798.36/325,810.27
  6. Step 6: Final answer
    x = 133,747.35

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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.