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Finding the Fourth Proportional to 104,627.60, 156,941.40 and 91,505.60

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Solution

The fourth proportional to 104,627.60, 156,941.40 and 91,505.60 is: 137,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,627.60 : 156,941.40 = 91,505.60 : x
  2. Step 2: Convert to fraction form
    104,627.60/156,941.40 = 91,505.60/x
  3. Step 3: Cross multiply
    104,627.60x = 156,941.40 × 91,505.60
  4. Step 4: Simplify right side
    104,627.60x = 14,361,016,971.84
  5. Step 5: Solve for x
    x = 14,361,016,971.84/104,627.60
  6. Step 6: Final answer
    x = 137,258.40

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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.