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Finding the Fourth Proportional to 108,705.40, 163,040.64 and 29,801.32

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Solution

The fourth proportional to 108,705.40, 163,040.64 and 29,801.32 is: 44,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,705.40 : 163,040.64 = 29,801.32 : x
  2. Step 2: Convert to fraction form
    108,705.40/163,040.64 = 29,801.32/x
  3. Step 3: Cross multiply
    108,705.40x = 163,040.64 × 29,801.32
  4. Step 4: Simplify right side
    108,705.40x = 4,858,826,285.64
  5. Step 5: Solve for x
    x = 4,858,826,285.64/108,705.40
  6. Step 6: Final answer
    x = 44,697.19

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1.5x scale

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.