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Finding the Fourth Proportional to 108,453.80, 162,486.30 and 92,901.80

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Solution

The fourth proportional to 108,453.80, 162,486.30 and 92,901.80 is: 139,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,453.80 : 162,486.30 = 92,901.80 : x
  2. Step 2: Convert to fraction form
    108,453.80/162,486.30 = 92,901.80/x
  3. Step 3: Cross multiply
    108,453.80x = 162,486.30 × 92,901.80
  4. Step 4: Simplify right side
    108,453.80x = 15,095,269,745.34
  5. Step 5: Solve for x
    x = 15,095,269,745.34/108,453.80
  6. Step 6: Final answer
    x = 139,186.18

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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.