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Finding the Fourth Proportional to 95,485.48, 131,830.70 and 65,321.08

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Solution

The fourth proportional to 95,485.48, 131,830.70 and 65,321.08 is: 90,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,485.48 : 131,830.70 = 65,321.08 : x
  2. Step 2: Convert to fraction form
    95,485.48/131,830.70 = 65,321.08/x
  3. Step 3: Cross multiply
    95,485.48x = 131,830.70 × 65,321.08
  4. Step 4: Simplify right side
    95,485.48x = 8,611,323,701.16
  5. Step 5: Solve for x
    x = 8,611,323,701.16/95,485.48
  6. Step 6: Final answer
    x = 90,184.64

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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.