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Finding the Fourth Proportional to 384,058.60, 576,087.90 and 134,765.80

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Solution

The fourth proportional to 384,058.60, 576,087.90 and 134,765.80 is: 202,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,058.60 : 576,087.90 = 134,765.80 : x
  2. Step 2: Convert to fraction form
    384,058.60/576,087.90 = 134,765.80/x
  3. Step 3: Cross multiply
    384,058.60x = 576,087.90 × 134,765.80
  4. Step 4: Simplify right side
    384,058.60x = 77,636,946,713.82
  5. Step 5: Solve for x
    x = 77,636,946,713.82/384,058.60
  6. Step 6: Final answer
    x = 202,148.70

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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.