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Finding the Fourth Proportional to 64,268.74, 96,235.44 and 51,720.22

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Solution

The fourth proportional to 64,268.74, 96,235.44 and 51,720.22 is: 77,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,268.74 : 96,235.44 = 51,720.22 : x
  2. Step 2: Convert to fraction form
    64,268.74/96,235.44 = 51,720.22/x
  3. Step 3: Cross multiply
    64,268.74x = 96,235.44 × 51,720.22
  4. Step 4: Simplify right side
    64,268.74x = 4,977,318,128.60
  5. Step 5: Solve for x
    x = 4,977,318,128.60/64,268.74
  6. Step 6: Final answer
    x = 77,445.40

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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.