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Finding the Fourth Proportional to 108,032.26, 149,037.06 and 103,029.50

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Solution

The fourth proportional to 108,032.26, 149,037.06 and 103,029.50 is: 142,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,032.26 : 149,037.06 = 103,029.50 : x
  2. Step 2: Convert to fraction form
    108,032.26/149,037.06 = 103,029.50/x
  3. Step 3: Cross multiply
    108,032.26x = 149,037.06 × 103,029.50
  4. Step 4: Simplify right side
    108,032.26x = 15,355,213,258.12
  5. Step 5: Solve for x
    x = 15,355,213,258.12/108,032.26
  6. Step 6: Final answer
    x = 142,135.44

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1.5x scale

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.