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Finding the Fourth Proportional to 61,223.40, 91,825.02 and 57,238.44

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Solution

The fourth proportional to 61,223.40, 91,825.02 and 57,238.44 is: 85,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,223.40 : 91,825.02 = 57,238.44 : x
  2. Step 2: Convert to fraction form
    61,223.40/91,825.02 = 57,238.44/x
  3. Step 3: Cross multiply
    61,223.40x = 91,825.02 × 57,238.44
  4. Step 4: Simplify right side
    61,223.40x = 5,255,920,897.77
  5. Step 5: Solve for x
    x = 5,255,920,897.77/61,223.40
  6. Step 6: Final answer
    x = 85,848.24

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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.