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Finding the Fourth Proportional to 65,211.60, 97,860.60 and 37,131.60

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Solution

The fourth proportional to 65,211.60, 97,860.60 and 37,131.60 is: 55,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,211.60 : 97,860.60 = 37,131.60 : x
  2. Step 2: Convert to fraction form
    65,211.60/97,860.60 = 37,131.60/x
  3. Step 3: Cross multiply
    65,211.60x = 97,860.60 × 37,131.60
  4. Step 4: Simplify right side
    65,211.60x = 3,633,720,654.96
  5. Step 5: Solve for x
    x = 3,633,720,654.96/65,211.60
  6. Step 6: Final answer
    x = 55,722.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.