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Finding the Fourth Proportional to 108,292.21, 162,512.12 and 65,051.57

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Solution

The fourth proportional to 108,292.21, 162,512.12 and 65,051.57 is: 97,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,292.21 : 162,512.12 = 65,051.57 : x
  2. Step 2: Convert to fraction form
    108,292.21/162,512.12 = 65,051.57/x
  3. Step 3: Cross multiply
    108,292.21x = 162,512.12 × 65,051.57
  4. Step 4: Simplify right side
    108,292.21x = 10,571,669,118.94
  5. Step 5: Solve for x
    x = 10,571,669,118.94/108,292.21
  6. Step 6: Final answer
    x = 97,621.70

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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.