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Finding the Fourth Proportional to 148,482.80, 222,724.20 and 139,734.80

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Solution

The fourth proportional to 148,482.80, 222,724.20 and 139,734.80 is: 209,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,482.80 : 222,724.20 = 139,734.80 : x
  2. Step 2: Convert to fraction form
    148,482.80/222,724.20 = 139,734.80/x
  3. Step 3: Cross multiply
    148,482.80x = 222,724.20 × 139,734.80
  4. Step 4: Simplify right side
    148,482.80x = 31,122,321,542.16
  5. Step 5: Solve for x
    x = 31,122,321,542.16/148,482.80
  6. Step 6: Final answer
    x = 209,602.20

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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.