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Finding the Fourth Proportional to 203,713.96, 305,574.78 and 70,598.56

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Solution

The fourth proportional to 203,713.96, 305,574.78 and 70,598.56 is: 105,899.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,713.96 : 305,574.78 = 70,598.56 : x
  2. Step 2: Convert to fraction form
    203,713.96/305,574.78 = 70,598.56/x
  3. Step 3: Cross multiply
    203,713.96x = 305,574.78 × 70,598.56
  4. Step 4: Simplify right side
    203,713.96x = 21,573,139,440.32
  5. Step 5: Solve for x
    x = 21,573,139,440.32/203,713.96
  6. Step 6: Final answer
    x = 105,899.17

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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.