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Finding the Fourth Proportional to 148,858.40, 223,323.60 and 43,680.80

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Solution

The fourth proportional to 148,858.40, 223,323.60 and 43,680.80 is: 65,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,858.40 : 223,323.60 = 43,680.80 : x
  2. Step 2: Convert to fraction form
    148,858.40/223,323.60 = 43,680.80/x
  3. Step 3: Cross multiply
    148,858.40x = 223,323.60 × 43,680.80
  4. Step 4: Simplify right side
    148,858.40x = 9,754,953,506.88
  5. Step 5: Solve for x
    x = 9,754,953,506.88/148,858.40
  6. Step 6: Final answer
    x = 65,531.76

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1.5x scale

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.