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Finding the Fourth Proportional to 143,657.01, 215,485.38 and 38,473.11

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Solution

The fourth proportional to 143,657.01, 215,485.38 and 38,473.11 is: 57,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,657.01 : 215,485.38 = 38,473.11 : x
  2. Step 2: Convert to fraction form
    143,657.01/215,485.38 = 38,473.11/x
  3. Step 3: Cross multiply
    143,657.01x = 215,485.38 × 38,473.11
  4. Step 4: Simplify right side
    143,657.01x = 8,290,392,728.13
  5. Step 5: Solve for x
    x = 8,290,392,728.13/143,657.01
  6. Step 6: Final answer
    x = 57,709.63

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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.