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Finding the Fourth Proportional to 104,615.60, 156,923.40 and 91,493.60

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Solution

The fourth proportional to 104,615.60, 156,923.40 and 91,493.60 is: 137,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.60 : 156,923.40 = 91,493.60 : x
  2. Step 2: Convert to fraction form
    104,615.60/156,923.40 = 91,493.60/x
  3. Step 3: Cross multiply
    104,615.60x = 156,923.40 × 91,493.60
  4. Step 4: Simplify right side
    104,615.60x = 14,357,486,790.24
  5. Step 5: Solve for x
    x = 14,357,486,790.24/104,615.60
  6. Step 6: Final answer
    x = 137,240.40

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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.