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Finding the Fourth Proportional to 154,751.67, 212,166.52 and 151,952.31

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Solution

The fourth proportional to 154,751.67, 212,166.52 and 151,952.31 is: 208,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,751.67 : 212,166.52 = 151,952.31 : x
  2. Step 2: Convert to fraction form
    154,751.67/212,166.52 = 151,952.31/x
  3. Step 3: Cross multiply
    154,751.67x = 212,166.52 × 151,952.31
  4. Step 4: Simplify right side
    154,751.67x = 32,239,192,438.78
  5. Step 5: Solve for x
    x = 32,239,192,438.78/154,751.67
  6. Step 6: Final answer
    x = 208,328.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.