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Finding the Fourth Proportional to 193,314.60, 289,971.90 and 185,538.60

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Solution

The fourth proportional to 193,314.60, 289,971.90 and 185,538.60 is: 278,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,314.60 : 289,971.90 = 185,538.60 : x
  2. Step 2: Convert to fraction form
    193,314.60/289,971.90 = 185,538.60/x
  3. Step 3: Cross multiply
    193,314.60x = 289,971.90 × 185,538.60
  4. Step 4: Simplify right side
    193,314.60x = 53,800,980,365.34
  5. Step 5: Solve for x
    x = 53,800,980,365.34/193,314.60
  6. Step 6: Final answer
    x = 278,307.90

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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.