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Finding the Fourth Proportional to 256,497.74, 354,193.85 and 159,866.51

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Solution

The fourth proportional to 256,497.74, 354,193.85 and 159,866.51 is: 220,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,497.74 : 354,193.85 = 159,866.51 : x
  2. Step 2: Convert to fraction form
    256,497.74/354,193.85 = 159,866.51/x
  3. Step 3: Cross multiply
    256,497.74x = 354,193.85 × 159,866.51
  4. Step 4: Simplify right side
    256,497.74x = 56,623,733,863.63
  5. Step 5: Solve for x
    x = 56,623,733,863.63/256,497.74
  6. Step 6: Final answer
    x = 220,757.24

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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.