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Finding the Fourth Proportional to 88,415.50, 122,013.40 and 48,671.50

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Solution

The fourth proportional to 88,415.50, 122,013.40 and 48,671.50 is: 67,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,415.50 : 122,013.40 = 48,671.50 : x
  2. Step 2: Convert to fraction form
    88,415.50/122,013.40 = 48,671.50/x
  3. Step 3: Cross multiply
    88,415.50x = 122,013.40 × 48,671.50
  4. Step 4: Simplify right side
    88,415.50x = 5,938,575,198.10
  5. Step 5: Solve for x
    x = 5,938,575,198.10/88,415.50
  6. Step 6: Final answer
    x = 67,166.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.