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Finding the Fourth Proportional to 256,598.76, 354,114.02 and 143,418.60

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Solution

The fourth proportional to 256,598.76, 354,114.02 and 143,418.60 is: 197,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,598.76 : 354,114.02 = 143,418.60 : x
  2. Step 2: Convert to fraction form
    256,598.76/354,114.02 = 143,418.60/x
  3. Step 3: Cross multiply
    256,598.76x = 354,114.02 × 143,418.60
  4. Step 4: Simplify right side
    256,598.76x = 50,786,536,988.77
  5. Step 5: Solve for x
    x = 50,786,536,988.77/256,598.76
  6. Step 6: Final answer
    x = 197,921.99

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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.