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Finding the Fourth Proportional to 148,015.20, 222,051.60 and 42,837.60

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Solution

The fourth proportional to 148,015.20, 222,051.60 and 42,837.60 is: 64,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,015.20 : 222,051.60 = 42,837.60 : x
  2. Step 2: Convert to fraction form
    148,015.20/222,051.60 = 42,837.60/x
  3. Step 3: Cross multiply
    148,015.20x = 222,051.60 × 42,837.60
  4. Step 4: Simplify right side
    148,015.20x = 9,512,157,620.16
  5. Step 5: Solve for x
    x = 9,512,157,620.16/148,015.20
  6. Step 6: Final answer
    x = 64,264.74

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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.