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Finding the Fourth Proportional to 245,432.68, 368,422.38 and 127,072.24

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Solution

The fourth proportional to 245,432.68, 368,422.38 and 127,072.24 is: 190,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,432.68 : 368,422.38 = 127,072.24 : x
  2. Step 2: Convert to fraction form
    245,432.68/368,422.38 = 127,072.24/x
  3. Step 3: Cross multiply
    245,432.68x = 368,422.38 × 127,072.24
  4. Step 4: Simplify right side
    245,432.68x = 46,816,257,092.73
  5. Step 5: Solve for x
    x = 46,816,257,092.73/245,432.68
  6. Step 6: Final answer
    x = 190,749.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.