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Finding the Fourth Proportional to 65,801.20, 98,750.40 and 43,607.20

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Solution

The fourth proportional to 65,801.20, 98,750.40 and 43,607.20 is: 65,443.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,801.20 : 98,750.40 = 43,607.20 : x
  2. Step 2: Convert to fraction form
    65,801.20/98,750.40 = 43,607.20/x
  3. Step 3: Cross multiply
    65,801.20x = 98,750.40 × 43,607.20
  4. Step 4: Simplify right side
    65,801.20x = 4,306,228,442.88
  5. Step 5: Solve for x
    x = 4,306,228,442.88/65,801.20
  6. Step 6: Final answer
    x = 65,443.01

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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.