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Finding the Fourth Proportional to 96,132.72, 132,721.60 and 65,967.60

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Solution

The fourth proportional to 96,132.72, 132,721.60 and 65,967.60 is: 91,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,132.72 : 132,721.60 = 65,967.60 : x
  2. Step 2: Convert to fraction form
    96,132.72/132,721.60 = 65,967.60/x
  3. Step 3: Cross multiply
    96,132.72x = 132,721.60 × 65,967.60
  4. Step 4: Simplify right side
    96,132.72x = 8,755,325,420.16
  5. Step 5: Solve for x
    x = 8,755,325,420.16/96,132.72
  6. Step 6: Final answer
    x = 91,075.39

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1.5x scale

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.