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Finding the Fourth Proportional to 245,718.74, 339,196.48 and 165,192.97

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Solution

The fourth proportional to 245,718.74, 339,196.48 and 165,192.97 is: 228,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,718.74 : 339,196.48 = 165,192.97 : x
  2. Step 2: Convert to fraction form
    245,718.74/339,196.48 = 165,192.97/x
  3. Step 3: Cross multiply
    245,718.74x = 339,196.48 × 165,192.97
  4. Step 4: Simplify right side
    245,718.74x = 56,032,873,944.75
  5. Step 5: Solve for x
    x = 56,032,873,944.75/245,718.74
  6. Step 6: Final answer
    x = 228,036.63

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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.