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Finding the Fourth Proportional to 108,598, 149,873.88 and 63,894.64

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Solution

The fourth proportional to 108,598, 149,873.88 and 63,894.64 is: 88,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,598 : 149,873.88 = 63,894.64 : x
  2. Step 2: Convert to fraction form
    108,598/149,873.88 = 63,894.64/x
  3. Step 3: Cross multiply
    108,598x = 149,873.88 × 63,894.64
  4. Step 4: Simplify right side
    108,598x = 9,576,137,608.00
  5. Step 5: Solve for x
    x = 9,576,137,608.00/108,598
  6. Step 6: Final answer
    x = 88,179.69

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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.