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Finding the Fourth Proportional to 132,609.60, 198,428.40 and 97,617.60

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Solution

The fourth proportional to 132,609.60, 198,428.40 and 97,617.60 is: 146,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,609.60 : 198,428.40 = 97,617.60 : x
  2. Step 2: Convert to fraction form
    132,609.60/198,428.40 = 97,617.60/x
  3. Step 3: Cross multiply
    132,609.60x = 198,428.40 × 97,617.60
  4. Step 4: Simplify right side
    132,609.60x = 19,370,104,179.84
  5. Step 5: Solve for x
    x = 19,370,104,179.84/132,609.60
  6. Step 6: Final answer
    x = 146,068.64

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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.