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Finding the Fourth Proportional to 256,052.75, 353,485.67 and 187,064.84

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Solution

The fourth proportional to 256,052.75, 353,485.67 and 187,064.84 is: 258,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,052.75 : 353,485.67 = 187,064.84 : x
  2. Step 2: Convert to fraction form
    256,052.75/353,485.67 = 187,064.84/x
  3. Step 3: Cross multiply
    256,052.75x = 353,485.67 × 187,064.84
  4. Step 4: Simplify right side
    256,052.75x = 66,124,737,598.09
  5. Step 5: Solve for x
    x = 66,124,737,598.09/256,052.75
  6. Step 6: Final answer
    x = 258,246.55

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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.