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Finding the Fourth Proportional to 88,751.52, 122,445.72 and 56,937.60

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Solution

The fourth proportional to 88,751.52, 122,445.72 and 56,937.60 is: 78,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,751.52 : 122,445.72 = 56,937.60 : x
  2. Step 2: Convert to fraction form
    88,751.52/122,445.72 = 56,937.60/x
  3. Step 3: Cross multiply
    88,751.52x = 122,445.72 × 56,937.60
  4. Step 4: Simplify right side
    88,751.52x = 6,971,765,427.07
  5. Step 5: Solve for x
    x = 6,971,765,427.07/88,751.52
  6. Step 6: Final answer
    x = 78,553.76

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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.