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Finding the Fourth Proportional to 88,662.69, 122,336.60 and 56,410.11

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Solution

The fourth proportional to 88,662.69, 122,336.60 and 56,410.11 is: 77,834.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,662.69 : 122,336.60 = 56,410.11 : x
  2. Step 2: Convert to fraction form
    88,662.69/122,336.60 = 56,410.11/x
  3. Step 3: Cross multiply
    88,662.69x = 122,336.60 × 56,410.11
  4. Step 4: Simplify right side
    88,662.69x = 6,901,020,780.98
  5. Step 5: Solve for x
    x = 6,901,020,780.98/88,662.69
  6. Step 6: Final answer
    x = 77,834.55

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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.