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Finding the Fourth Proportional to 256,044.99, 353,342.48 and 142,868.01

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Solution

The fourth proportional to 256,044.99, 353,342.48 and 142,868.01 is: 197,158.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,044.99 : 353,342.48 = 142,868.01 : x
  2. Step 2: Convert to fraction form
    256,044.99/353,342.48 = 142,868.01/x
  3. Step 3: Cross multiply
    256,044.99x = 353,342.48 × 142,868.01
  4. Step 4: Simplify right side
    256,044.99x = 50,481,336,251.72
  5. Step 5: Solve for x
    x = 50,481,336,251.72/256,044.99
  6. Step 6: Final answer
    x = 197,158.07

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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.