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Finding the Fourth Proportional to 116,515.20, 174,643.20 and 63,962.40

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Solution

The fourth proportional to 116,515.20, 174,643.20 and 63,962.40 is: 95,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,515.20 : 174,643.20 = 63,962.40 : x
  2. Step 2: Convert to fraction form
    116,515.20/174,643.20 = 63,962.40/x
  3. Step 3: Cross multiply
    116,515.20x = 174,643.20 × 63,962.40
  4. Step 4: Simplify right side
    116,515.20x = 11,170,598,215.68
  5. Step 5: Solve for x
    x = 11,170,598,215.68/116,515.20
  6. Step 6: Final answer
    x = 95,872.45

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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.