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Finding the Fourth Proportional to 316,058.49, 474,051.24 and 79,383.15

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Solution

The fourth proportional to 316,058.49, 474,051.24 and 79,383.15 is: 119,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,058.49 : 474,051.24 = 79,383.15 : x
  2. Step 2: Convert to fraction form
    316,058.49/474,051.24 = 79,383.15/x
  3. Step 3: Cross multiply
    316,058.49x = 474,051.24 × 79,383.15
  4. Step 4: Simplify right side
    316,058.49x = 37,631,680,692.61
  5. Step 5: Solve for x
    x = 37,631,680,692.61/316,058.49
  6. Step 6: Final answer
    x = 119,065.56

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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.