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Finding the Fourth Proportional to 108,625.80, 162,938.70 and 46,288.20

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Solution

The fourth proportional to 108,625.80, 162,938.70 and 46,288.20 is: 69,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,625.80 : 162,938.70 = 46,288.20 : x
  2. Step 2: Convert to fraction form
    108,625.80/162,938.70 = 46,288.20/x
  3. Step 3: Cross multiply
    108,625.80x = 162,938.70 × 46,288.20
  4. Step 4: Simplify right side
    108,625.80x = 7,542,139,133.34
  5. Step 5: Solve for x
    x = 7,542,139,133.34/108,625.80
  6. Step 6: Final answer
    x = 69,432.30

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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.