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Finding the Fourth Proportional to 255,611.70, 352,770.39 and 153,670.37

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Solution

The fourth proportional to 255,611.70, 352,770.39 and 153,670.37 is: 212,080.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,611.70 : 352,770.39 = 153,670.37 : x
  2. Step 2: Convert to fraction form
    255,611.70/352,770.39 = 153,670.37/x
  3. Step 3: Cross multiply
    255,611.70x = 352,770.39 × 153,670.37
  4. Step 4: Simplify right side
    255,611.70x = 54,210,354,592.49
  5. Step 5: Solve for x
    x = 54,210,354,592.49/255,611.70
  6. Step 6: Final answer
    x = 212,080.88

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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.