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Finding the Fourth Proportional to 74,408.32, 112,124 and 61,548.76

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Solution

The fourth proportional to 74,408.32, 112,124 and 61,548.76 is: 92,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.32 : 112,124 = 61,548.76 : x
  2. Step 2: Convert to fraction form
    74,408.32/112,124 = 61,548.76/x
  3. Step 3: Cross multiply
    74,408.32x = 112,124 × 61,548.76
  4. Step 4: Simplify right side
    74,408.32x = 6,901,093,166.24
  5. Step 5: Solve for x
    x = 6,901,093,166.24/74,408.32
  6. Step 6: Final answer
    x = 92,746.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.