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Finding the Fourth Proportional to 53,152.40, 79,728.60 and 36,563.60

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Solution

The fourth proportional to 53,152.40, 79,728.60 and 36,563.60 is: 54,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,152.40 : 79,728.60 = 36,563.60 : x
  2. Step 2: Convert to fraction form
    53,152.40/79,728.60 = 36,563.60/x
  3. Step 3: Cross multiply
    53,152.40x = 79,728.60 × 36,563.60
  4. Step 4: Simplify right side
    53,152.40x = 2,915,164,638.96
  5. Step 5: Solve for x
    x = 2,915,164,638.96/53,152.40
  6. Step 6: Final answer
    x = 54,845.40

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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.