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Finding the Fourth Proportional to 66,472.50, 99,774.43 and 29,058.40

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Solution

The fourth proportional to 66,472.50, 99,774.43 and 29,058.40 is: 43,616.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.50 : 99,774.43 = 29,058.40 : x
  2. Step 2: Convert to fraction form
    66,472.50/99,774.43 = 29,058.40/x
  3. Step 3: Cross multiply
    66,472.50x = 99,774.43 × 29,058.40
  4. Step 4: Simplify right side
    66,472.50x = 2,899,284,951.01
  5. Step 5: Solve for x
    x = 2,899,284,951.01/66,472.50
  6. Step 6: Final answer
    x = 43,616.31

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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.