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Finding the Fourth Proportional to 74,809, 112,237.80 and 52,342.84

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Solution

The fourth proportional to 74,809, 112,237.80 and 52,342.84 is: 78,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809 : 112,237.80 = 52,342.84 : x
  2. Step 2: Convert to fraction form
    74,809/112,237.80 = 52,342.84/x
  3. Step 3: Cross multiply
    74,809x = 112,237.80 × 52,342.84
  4. Step 4: Simplify right side
    74,809x = 5,874,845,207.35
  5. Step 5: Solve for x
    x = 5,874,845,207.35/74,809
  6. Step 6: Final answer
    x = 78,531.26

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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.