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Finding the Fourth Proportional to 108,173.44, 149,110 and 99,483.76

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Solution

The fourth proportional to 108,173.44, 149,110 and 99,483.76 is: 137,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,173.44 : 149,110 = 99,483.76 : x
  2. Step 2: Convert to fraction form
    108,173.44/149,110 = 99,483.76/x
  3. Step 3: Cross multiply
    108,173.44x = 149,110 × 99,483.76
  4. Step 4: Simplify right side
    108,173.44x = 14,834,023,453.60
  5. Step 5: Solve for x
    x = 14,834,023,453.60/108,173.44
  6. Step 6: Final answer
    x = 137,131.85

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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.