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Finding the Fourth Proportional to 108,649.50, 163,021.08 and 58,764.72

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Solution

The fourth proportional to 108,649.50, 163,021.08 and 58,764.72 is: 88,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,649.50 : 163,021.08 = 58,764.72 : x
  2. Step 2: Convert to fraction form
    108,649.50/163,021.08 = 58,764.72/x
  3. Step 3: Cross multiply
    108,649.50x = 163,021.08 × 58,764.72
  4. Step 4: Simplify right side
    108,649.50x = 9,579,888,120.30
  5. Step 5: Solve for x
    x = 9,579,888,120.30/108,649.50
  6. Step 6: Final answer
    x = 88,172.41

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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.