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Finding the Fourth Proportional to 98,962.88, 136,626.72 and 65,025.44

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Solution

The fourth proportional to 98,962.88, 136,626.72 and 65,025.44 is: 89,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,962.88 : 136,626.72 = 65,025.44 : x
  2. Step 2: Convert to fraction form
    98,962.88/136,626.72 = 65,025.44/x
  3. Step 3: Cross multiply
    98,962.88x = 136,626.72 × 65,025.44
  4. Step 4: Simplify right side
    98,962.88x = 8,884,212,583.76
  5. Step 5: Solve for x
    x = 8,884,212,583.76/98,962.88
  6. Step 6: Final answer
    x = 89,773.18

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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.