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Finding the Fourth Proportional to 74,341, 111,489.63 and 21,737.98

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Solution

The fourth proportional to 74,341, 111,489.63 and 21,737.98 is: 32,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,341 : 111,489.63 = 21,737.98 : x
  2. Step 2: Convert to fraction form
    74,341/111,489.63 = 21,737.98/x
  3. Step 3: Cross multiply
    74,341x = 111,489.63 × 21,737.98
  4. Step 4: Simplify right side
    74,341x = 2,423,559,347.15
  5. Step 5: Solve for x
    x = 2,423,559,347.15/74,341
  6. Step 6: Final answer
    x = 32,600.58

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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.