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Finding the Fourth Proportional to 100,556.60, 150,446.10 and 65,564.60

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Solution

The fourth proportional to 100,556.60, 150,446.10 and 65,564.60 is: 98,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,556.60 : 150,446.10 = 65,564.60 : x
  2. Step 2: Convert to fraction form
    100,556.60/150,446.10 = 65,564.60/x
  3. Step 3: Cross multiply
    100,556.60x = 150,446.10 × 65,564.60
  4. Step 4: Simplify right side
    100,556.60x = 9,863,938,368.06
  5. Step 5: Solve for x
    x = 9,863,938,368.06/100,556.60
  6. Step 6: Final answer
    x = 98,093.40

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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.