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Finding the Fourth Proportional to 108,562.64, 163,583.48 and 89,273.32

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Solution

The fourth proportional to 108,562.64, 163,583.48 and 89,273.32 is: 134,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,562.64 : 163,583.48 = 89,273.32 : x
  2. Step 2: Convert to fraction form
    108,562.64/163,583.48 = 89,273.32/x
  3. Step 3: Cross multiply
    108,562.64x = 163,583.48 × 89,273.32
  4. Step 4: Simplify right side
    108,562.64x = 14,603,640,356.75
  5. Step 5: Solve for x
    x = 14,603,640,356.75/108,562.64
  6. Step 6: Final answer
    x = 134,518.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.