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Finding the Fourth Proportional to 256,607.35, 354,103.84 and 141,879.11

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Solution

The fourth proportional to 256,607.35, 354,103.84 and 141,879.11 is: 195,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607.35 : 354,103.84 = 141,879.11 : x
  2. Step 2: Convert to fraction form
    256,607.35/354,103.84 = 141,879.11/x
  3. Step 3: Cross multiply
    256,607.35x = 354,103.84 × 141,879.11
  4. Step 4: Simplify right side
    256,607.35x = 50,239,935,541.57
  5. Step 5: Solve for x
    x = 50,239,935,541.57/256,607.35
  6. Step 6: Final answer
    x = 195,785.26

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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.