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Finding the Fourth Proportional to 88,980.93, 122,781.83 and 51,247.89

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Solution

The fourth proportional to 88,980.93, 122,781.83 and 51,247.89 is: 70,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,980.93 : 122,781.83 = 51,247.89 : x
  2. Step 2: Convert to fraction form
    88,980.93/122,781.83 = 51,247.89/x
  3. Step 3: Cross multiply
    88,980.93x = 122,781.83 × 51,247.89
  4. Step 4: Simplify right side
    88,980.93x = 6,292,309,461.60
  5. Step 5: Solve for x
    x = 6,292,309,461.60/88,980.93
  6. Step 6: Final answer
    x = 70,715.26

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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.