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Finding the Fourth Proportional to 195,476.64, 293,058.42 and 128,425.92

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Solution

The fourth proportional to 195,476.64, 293,058.42 and 128,425.92 is: 192,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,476.64 : 293,058.42 = 128,425.92 : x
  2. Step 2: Convert to fraction form
    195,476.64/293,058.42 = 128,425.92/x
  3. Step 3: Cross multiply
    195,476.64x = 293,058.42 × 128,425.92
  4. Step 4: Simplify right side
    195,476.64x = 37,636,297,202.25
  5. Step 5: Solve for x
    x = 37,636,297,202.25/195,476.64
  6. Step 6: Final answer
    x = 192,536.04

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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.