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Finding the Fourth Proportional to 65,412.30, 98,227.80 and 43,323.60

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Solution

The fourth proportional to 65,412.30, 98,227.80 and 43,323.60 is: 65,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,412.30 : 98,227.80 = 43,323.60 : x
  2. Step 2: Convert to fraction form
    65,412.30/98,227.80 = 43,323.60/x
  3. Step 3: Cross multiply
    65,412.30x = 98,227.80 × 43,323.60
  4. Step 4: Simplify right side
    65,412.30x = 4,255,581,916.08
  5. Step 5: Solve for x
    x = 4,255,581,916.08/65,412.30
  6. Step 6: Final answer
    x = 65,057.82

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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.