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Finding the Fourth Proportional to 210,326.97, 290,276.69 and 119,704.98

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Solution

The fourth proportional to 210,326.97, 290,276.69 and 119,704.98 is: 165,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,326.97 : 290,276.69 = 119,704.98 : x
  2. Step 2: Convert to fraction form
    210,326.97/290,276.69 = 119,704.98/x
  3. Step 3: Cross multiply
    210,326.97x = 290,276.69 × 119,704.98
  4. Step 4: Simplify right side
    210,326.97x = 34,747,564,772.39
  5. Step 5: Solve for x
    x = 34,747,564,772.39/210,326.97
  6. Step 6: Final answer
    x = 165,207.37

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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.