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Finding the Fourth Proportional to 256,650.12, 354,146.16 and 141,913.08

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Solution

The fourth proportional to 256,650.12, 354,146.16 and 141,913.08 is: 195,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,650.12 : 354,146.16 = 141,913.08 : x
  2. Step 2: Convert to fraction form
    256,650.12/354,146.16 = 141,913.08/x
  3. Step 3: Cross multiply
    256,650.12x = 354,146.16 × 141,913.08
  4. Step 4: Simplify right side
    256,650.12x = 50,257,972,335.77
  5. Step 5: Solve for x
    x = 50,257,972,335.77/256,650.12
  6. Step 6: Final answer
    x = 195,822.91

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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.