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Finding the Fourth Proportional to 203,490.56, 280,816.08 and 114,066.56

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Solution

The fourth proportional to 203,490.56, 280,816.08 and 114,066.56 is: 157,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,490.56 : 280,816.08 = 114,066.56 : x
  2. Step 2: Convert to fraction form
    203,490.56/280,816.08 = 114,066.56/x
  3. Step 3: Cross multiply
    203,490.56x = 280,816.08 × 114,066.56
  4. Step 4: Simplify right side
    203,490.56x = 32,031,724,238.28
  5. Step 5: Solve for x
    x = 32,031,724,238.28/203,490.56
  6. Step 6: Final answer
    x = 157,411.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.