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Finding the Fourth Proportional to 64,771.20, 97,302.60 and 63,021.60

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Solution

The fourth proportional to 64,771.20, 97,302.60 and 63,021.60 is: 94,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,771.20 : 97,302.60 = 63,021.60 : x
  2. Step 2: Convert to fraction form
    64,771.20/97,302.60 = 63,021.60/x
  3. Step 3: Cross multiply
    64,771.20x = 97,302.60 × 63,021.60
  4. Step 4: Simplify right side
    64,771.20x = 6,132,165,536.16
  5. Step 5: Solve for x
    x = 6,132,165,536.16/64,771.20
  6. Step 6: Final answer
    x = 94,674.26

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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.