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Finding the Fourth Proportional to 61,223.40, 91,603.26 and 36,276.84

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Solution

The fourth proportional to 61,223.40, 91,603.26 and 36,276.84 is: 54,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,223.40 : 91,603.26 = 36,276.84 : x
  2. Step 2: Convert to fraction form
    61,223.40/91,603.26 = 36,276.84/x
  3. Step 3: Cross multiply
    61,223.40x = 91,603.26 × 36,276.84
  4. Step 4: Simplify right side
    61,223.40x = 3,323,076,806.50
  5. Step 5: Solve for x
    x = 3,323,076,806.50/61,223.40
  6. Step 6: Final answer
    x = 54,277.89

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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.