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Finding the Fourth Proportional to 186,247.60, 279,446.20 and 85,093.60

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Solution

The fourth proportional to 186,247.60, 279,446.20 and 85,093.60 is: 127,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,247.60 : 279,446.20 = 85,093.60 : x
  2. Step 2: Convert to fraction form
    186,247.60/279,446.20 = 85,093.60/x
  3. Step 3: Cross multiply
    186,247.60x = 279,446.20 × 85,093.60
  4. Step 4: Simplify right side
    186,247.60x = 23,779,083,164.32
  5. Step 5: Solve for x
    x = 23,779,083,164.32/186,247.60
  6. Step 6: Final answer
    x = 127,674.57

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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.