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Finding the Fourth Proportional to 88,698, 122,403.40 and 48,954

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Solution

The fourth proportional to 88,698, 122,403.40 and 48,954 is: 67,556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,698 : 122,403.40 = 48,954 : x
  2. Step 2: Convert to fraction form
    88,698/122,403.40 = 48,954/x
  3. Step 3: Cross multiply
    88,698x = 122,403.40 × 48,954
  4. Step 4: Simplify right side
    88,698x = 5,992,136,043.60
  5. Step 5: Solve for x
    x = 5,992,136,043.60/88,698
  6. Step 6: Final answer
    x = 67,556.61

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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.