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Finding the Fourth Proportional to 255,257.11, 352,238.97 and 147,808.45

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Solution

The fourth proportional to 255,257.11, 352,238.97 and 147,808.45 is: 203,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,257.11 : 352,238.97 = 147,808.45 : x
  2. Step 2: Convert to fraction form
    255,257.11/352,238.97 = 147,808.45/x
  3. Step 3: Cross multiply
    255,257.11x = 352,238.97 × 147,808.45
  4. Step 4: Simplify right side
    255,257.11x = 52,063,896,185.30
  5. Step 5: Solve for x
    x = 52,063,896,185.30/255,257.11
  6. Step 6: Final answer
    x = 203,966.49

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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.