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Finding the Fourth Proportional to 256,305.70, 353,695.01 and 141,581.87

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Solution

The fourth proportional to 256,305.70, 353,695.01 and 141,581.87 is: 195,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,305.70 : 353,695.01 = 141,581.87 : x
  2. Step 2: Convert to fraction form
    256,305.70/353,695.01 = 141,581.87/x
  3. Step 3: Cross multiply
    256,305.70x = 353,695.01 × 141,581.87
  4. Step 4: Simplify right side
    256,305.70x = 50,076,800,925.47
  5. Step 5: Solve for x
    x = 50,076,800,925.47/256,305.70
  6. Step 6: Final answer
    x = 195,379.19

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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.