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Finding the Fourth Proportional to 108,313.52, 149,510.28 and 74,434.18

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Solution

The fourth proportional to 108,313.52, 149,510.28 and 74,434.18 is: 102,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,313.52 : 149,510.28 = 74,434.18 : x
  2. Step 2: Convert to fraction form
    108,313.52/149,510.28 = 74,434.18/x
  3. Step 3: Cross multiply
    108,313.52x = 149,510.28 × 74,434.18
  4. Step 4: Simplify right side
    108,313.52x = 11,128,675,093.37
  5. Step 5: Solve for x
    x = 11,128,675,093.37/108,313.52
  6. Step 6: Final answer
    x = 102,745.02

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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.