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Finding the Fourth Proportional to 256,632.49, 354,138.42 and 141,904.45

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Solution

The fourth proportional to 256,632.49, 354,138.42 and 141,904.45 is: 195,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,632.49 : 354,138.42 = 141,904.45 : x
  2. Step 2: Convert to fraction form
    256,632.49/354,138.42 = 141,904.45/x
  3. Step 3: Cross multiply
    256,632.49x = 354,138.42 × 141,904.45
  4. Step 4: Simplify right side
    256,632.49x = 50,253,817,713.97
  5. Step 5: Solve for x
    x = 50,253,817,713.97/256,632.49
  6. Step 6: Final answer
    x = 195,820.17

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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.