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Finding the Fourth Proportional to 65,219.60, 97,872.60 and 37,139.60

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Solution

The fourth proportional to 65,219.60, 97,872.60 and 37,139.60 is: 55,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,219.60 : 97,872.60 = 37,139.60 : x
  2. Step 2: Convert to fraction form
    65,219.60/97,872.60 = 37,139.60/x
  3. Step 3: Cross multiply
    65,219.60x = 97,872.60 × 37,139.60
  4. Step 4: Simplify right side
    65,219.60x = 3,634,949,214.96
  5. Step 5: Solve for x
    x = 3,634,949,214.96/65,219.60
  6. Step 6: Final answer
    x = 55,734.00

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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.