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Finding the Fourth Proportional to 92,220.42, 138,232.08 and 65,845.20

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Solution

The fourth proportional to 92,220.42, 138,232.08 and 65,845.20 is: 98,697.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,220.42 : 138,232.08 = 65,845.20 : x
  2. Step 2: Convert to fraction form
    92,220.42/138,232.08 = 65,845.20/x
  3. Step 3: Cross multiply
    92,220.42x = 138,232.08 × 65,845.20
  4. Step 4: Simplify right side
    92,220.42x = 9,101,918,954.02
  5. Step 5: Solve for x
    x = 9,101,918,954.02/92,220.42
  6. Step 6: Final answer
    x = 98,697.44

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1.5x scale

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.