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Finding the Fourth Proportional to 149,071.60, 223,542.60 and 43,868.80

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Solution

The fourth proportional to 149,071.60, 223,542.60 and 43,868.80 is: 65,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,071.60 : 223,542.60 = 43,868.80 : x
  2. Step 2: Convert to fraction form
    149,071.60/223,542.60 = 43,868.80/x
  3. Step 3: Cross multiply
    149,071.60x = 223,542.60 × 43,868.80
  4. Step 4: Simplify right side
    149,071.60x = 9,806,545,610.88
  5. Step 5: Solve for x
    x = 9,806,545,610.88/149,071.60
  6. Step 6: Final answer
    x = 65,784.13

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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.