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Finding the Fourth Proportional to 108,967.20, 150,363.72 and 63,646.08

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Solution

The fourth proportional to 108,967.20, 150,363.72 and 63,646.08 is: 87,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,967.20 : 150,363.72 = 63,646.08 : x
  2. Step 2: Convert to fraction form
    108,967.20/150,363.72 = 63,646.08/x
  3. Step 3: Cross multiply
    108,967.20x = 150,363.72 × 63,646.08
  4. Step 4: Simplify right side
    108,967.20x = 9,570,061,352.22
  5. Step 5: Solve for x
    x = 9,570,061,352.22/108,967.20
  6. Step 6: Final answer
    x = 87,825.16

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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.