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Finding the Fourth Proportional to 236,612.31, 326,525.72 and 151,729.71

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Solution

The fourth proportional to 236,612.31, 326,525.72 and 151,729.71 is: 209,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,612.31 : 326,525.72 = 151,729.71 : x
  2. Step 2: Convert to fraction form
    236,612.31/326,525.72 = 151,729.71/x
  3. Step 3: Cross multiply
    236,612.31x = 326,525.72 × 151,729.71
  4. Step 4: Simplify right side
    236,612.31x = 49,543,652,803.14
  5. Step 5: Solve for x
    x = 49,543,652,803.14/236,612.31
  6. Step 6: Final answer
    x = 209,387.47

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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.