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Finding the Fourth Proportional to 182,431.98, 251,617.55 and 156,980.97

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Solution

The fourth proportional to 182,431.98, 251,617.55 and 156,980.97 is: 216,514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,431.98 : 251,617.55 = 156,980.97 : x
  2. Step 2: Convert to fraction form
    182,431.98/251,617.55 = 156,980.97/x
  3. Step 3: Cross multiply
    182,431.98x = 251,617.55 × 156,980.97
  4. Step 4: Simplify right side
    182,431.98x = 39,499,166,283.12
  5. Step 5: Solve for x
    x = 39,499,166,283.12/182,431.98
  6. Step 6: Final answer
    x = 216,514.49

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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.