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Finding the Fourth Proportional to 88,704.69, 122,424.35 and 56,442.48

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Solution

The fourth proportional to 88,704.69, 122,424.35 and 56,442.48 is: 77,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,704.69 : 122,424.35 = 56,442.48 : x
  2. Step 2: Convert to fraction form
    88,704.69/122,424.35 = 56,442.48/x
  3. Step 3: Cross multiply
    88,704.69x = 122,424.35 × 56,442.48
  4. Step 4: Simplify right side
    88,704.69x = 6,909,933,644.18
  5. Step 5: Solve for x
    x = 6,909,933,644.18/88,704.69
  6. Step 6: Final answer
    x = 77,898.18

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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.