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Finding the Fourth Proportional to 183,616.40, 275,424.60 and 120,630.80

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Solution

The fourth proportional to 183,616.40, 275,424.60 and 120,630.80 is: 180,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,616.40 : 275,424.60 = 120,630.80 : x
  2. Step 2: Convert to fraction form
    183,616.40/275,424.60 = 120,630.80/x
  3. Step 3: Cross multiply
    183,616.40x = 275,424.60 × 120,630.80
  4. Step 4: Simplify right side
    183,616.40x = 33,224,689,837.68
  5. Step 5: Solve for x
    x = 33,224,689,837.68/183,616.40
  6. Step 6: Final answer
    x = 180,946.20

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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.