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Finding the Fourth Proportional to 256,422.66, 353,845.57 and 141,700.22

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Solution

The fourth proportional to 256,422.66, 353,845.57 and 141,700.22 is: 195,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,422.66 : 353,845.57 = 141,700.22 : x
  2. Step 2: Convert to fraction form
    256,422.66/353,845.57 = 141,700.22/x
  3. Step 3: Cross multiply
    256,422.66x = 353,845.57 × 141,700.22
  4. Step 4: Simplify right side
    256,422.66x = 50,139,994,982.69
  5. Step 5: Solve for x
    x = 50,139,994,982.69/256,422.66
  6. Step 6: Final answer
    x = 195,536.52

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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.