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Finding the Fourth Proportional to 69,116, 95,391.60 and 52,319.84

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Solution

The fourth proportional to 69,116, 95,391.60 and 52,319.84 is: 72,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,116 : 95,391.60 = 52,319.84 : x
  2. Step 2: Convert to fraction form
    69,116/95,391.60 = 52,319.84/x
  3. Step 3: Cross multiply
    69,116x = 95,391.60 × 52,319.84
  4. Step 4: Simplify right side
    69,116x = 4,990,873,249.34
  5. Step 5: Solve for x
    x = 4,990,873,249.34/69,116
  6. Step 6: Final answer
    x = 72,210.10

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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.