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Finding the Fourth Proportional to 256,063.01, 353,314.22 and 147,146.31

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Solution

The fourth proportional to 256,063.01, 353,314.22 and 147,146.31 is: 203,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,063.01 : 353,314.22 = 147,146.31 : x
  2. Step 2: Convert to fraction form
    256,063.01/353,314.22 = 147,146.31/x
  3. Step 3: Cross multiply
    256,063.01x = 353,314.22 × 147,146.31
  4. Step 4: Simplify right side
    256,063.01x = 51,988,883,007.80
  5. Step 5: Solve for x
    x = 51,988,883,007.80/256,063.01
  6. Step 6: Final answer
    x = 203,031.61

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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.