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Finding the Fourth Proportional to 255,154.56, 352,092.65 and 147,731.39

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Solution

The fourth proportional to 255,154.56, 352,092.65 and 147,731.39 is: 203,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,154.56 : 352,092.65 = 147,731.39 : x
  2. Step 2: Convert to fraction form
    255,154.56/352,092.65 = 147,731.39/x
  3. Step 3: Cross multiply
    255,154.56x = 352,092.65 × 147,731.39
  4. Step 4: Simplify right side
    255,154.56x = 52,015,137,810.53
  5. Step 5: Solve for x
    x = 52,015,137,810.53/255,154.56
  6. Step 6: Final answer
    x = 203,857.37

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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.