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Finding the Fourth Proportional to 148,492.80, 222,739.20 and 141,235.20

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Solution

The fourth proportional to 148,492.80, 222,739.20 and 141,235.20 is: 211,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,492.80 : 222,739.20 = 141,235.20 : x
  2. Step 2: Convert to fraction form
    148,492.80/222,739.20 = 141,235.20/x
  3. Step 3: Cross multiply
    148,492.80x = 222,739.20 × 141,235.20
  4. Step 4: Simplify right side
    148,492.80x = 31,458,615,459.84
  5. Step 5: Solve for x
    x = 31,458,615,459.84/148,492.80
  6. Step 6: Final answer
    x = 211,852.80

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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.