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Finding the Fourth Proportional to 66,889.98, 92,370.66 and 43,058.07

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Solution

The fourth proportional to 66,889.98, 92,370.66 and 43,058.07 is: 59,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,889.98 : 92,370.66 = 43,058.07 : x
  2. Step 2: Convert to fraction form
    66,889.98/92,370.66 = 43,058.07/x
  3. Step 3: Cross multiply
    66,889.98x = 92,370.66 × 43,058.07
  4. Step 4: Simplify right side
    66,889.98x = 3,977,302,344.23
  5. Step 5: Solve for x
    x = 3,977,302,344.23/66,889.98
  6. Step 6: Final answer
    x = 59,460.36

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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.