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Finding the Fourth Proportional to 98,419.60, 147,629.40 and 96,691.60

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Solution

The fourth proportional to 98,419.60, 147,629.40 and 96,691.60 is: 145,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,419.60 : 147,629.40 = 96,691.60 : x
  2. Step 2: Convert to fraction form
    98,419.60/147,629.40 = 96,691.60/x
  3. Step 3: Cross multiply
    98,419.60x = 147,629.40 × 96,691.60
  4. Step 4: Simplify right side
    98,419.60x = 14,274,522,893.04
  5. Step 5: Solve for x
    x = 14,274,522,893.04/98,419.60
  6. Step 6: Final answer
    x = 145,037.40

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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.