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Finding the Fourth Proportional to 108,615.80, 162,923.70 and 73,364.60

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Solution

The fourth proportional to 108,615.80, 162,923.70 and 73,364.60 is: 110,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.80 : 162,923.70 = 73,364.60 : x
  2. Step 2: Convert to fraction form
    108,615.80/162,923.70 = 73,364.60/x
  3. Step 3: Cross multiply
    108,615.80x = 162,923.70 × 73,364.60
  4. Step 4: Simplify right side
    108,615.80x = 11,952,832,081.02
  5. Step 5: Solve for x
    x = 11,952,832,081.02/108,615.80
  6. Step 6: Final answer
    x = 110,046.90

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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.