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Finding the Fourth Proportional to 256,271.02, 353,654.02 and 143,093.76

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Solution

The fourth proportional to 256,271.02, 353,654.02 and 143,093.76 is: 197,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,271.02 : 353,654.02 = 143,093.76 : x
  2. Step 2: Convert to fraction form
    256,271.02/353,654.02 = 143,093.76/x
  3. Step 3: Cross multiply
    256,271.02x = 353,654.02 × 143,093.76
  4. Step 4: Simplify right side
    256,271.02x = 50,605,683,460.92
  5. Step 5: Solve for x
    x = 50,605,683,460.92/256,271.02
  6. Step 6: Final answer
    x = 197,469.40

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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.