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Finding the Fourth Proportional to 61,058.40, 91,609.20 and 58,898.40

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Solution

The fourth proportional to 61,058.40, 91,609.20 and 58,898.40 is: 88,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,058.40 : 91,609.20 = 58,898.40 : x
  2. Step 2: Convert to fraction form
    61,058.40/91,609.20 = 58,898.40/x
  3. Step 3: Cross multiply
    61,058.40x = 91,609.20 × 58,898.40
  4. Step 4: Simplify right side
    61,058.40x = 5,395,635,305.28
  5. Step 5: Solve for x
    x = 5,395,635,305.28/61,058.40
  6. Step 6: Final answer
    x = 88,368.44

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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.