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Finding the Fourth Proportional to 216,652.61, 324,782.07 and 98,259.36

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Solution

The fourth proportional to 216,652.61, 324,782.07 and 98,259.36 is: 147,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,652.61 : 324,782.07 = 98,259.36 : x
  2. Step 2: Convert to fraction form
    216,652.61/324,782.07 = 98,259.36/x
  3. Step 3: Cross multiply
    216,652.61x = 324,782.07 × 98,259.36
  4. Step 4: Simplify right side
    216,652.61x = 31,912,878,337.68
  5. Step 5: Solve for x
    x = 31,912,878,337.68/216,652.61
  6. Step 6: Final answer
    x = 147,299.77

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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.