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Finding the Fourth Proportional to 256,292.91, 353,682.80 and 141,579.45

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Solution

The fourth proportional to 256,292.91, 353,682.80 and 141,579.45 is: 195,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,292.91 : 353,682.80 = 141,579.45 : x
  2. Step 2: Convert to fraction form
    256,292.91/353,682.80 = 141,579.45/x
  3. Step 3: Cross multiply
    256,292.91x = 353,682.80 × 141,579.45
  4. Step 4: Simplify right side
    256,292.91x = 50,074,216,298.46
  5. Step 5: Solve for x
    x = 50,074,216,298.46/256,292.91
  6. Step 6: Final answer
    x = 195,378.86

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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.