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Finding the Fourth Proportional to 135,595.50, 203,393.25 and 42,101.25

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Solution

The fourth proportional to 135,595.50, 203,393.25 and 42,101.25 is: 63,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,595.50 : 203,393.25 = 42,101.25 : x
  2. Step 2: Convert to fraction form
    135,595.50/203,393.25 = 42,101.25/x
  3. Step 3: Cross multiply
    135,595.50x = 203,393.25 × 42,101.25
  4. Step 4: Simplify right side
    135,595.50x = 8,563,110,066.56
  5. Step 5: Solve for x
    x = 8,563,110,066.56/135,595.50
  6. Step 6: Final answer
    x = 63,151.88

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Double scale
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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.