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Finding the Fourth Proportional to 88,958, 122,749.91 and 53,140.41

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Solution

The fourth proportional to 88,958, 122,749.91 and 53,140.41 is: 73,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,958 : 122,749.91 = 53,140.41 : x
  2. Step 2: Convert to fraction form
    88,958/122,749.91 = 53,140.41/x
  3. Step 3: Cross multiply
    88,958x = 122,749.91 × 53,140.41
  4. Step 4: Simplify right side
    88,958x = 6,522,980,544.86
  5. Step 5: Solve for x
    x = 6,522,980,544.86/88,958
  6. Step 6: Final answer
    x = 73,326.52

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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.