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Finding the Fourth Proportional to 186,060.40, 279,090.60 and 164,287.60

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Solution

The fourth proportional to 186,060.40, 279,090.60 and 164,287.60 is: 246,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,060.40 : 279,090.60 = 164,287.60 : x
  2. Step 2: Convert to fraction form
    186,060.40/279,090.60 = 164,287.60/x
  3. Step 3: Cross multiply
    186,060.40x = 279,090.60 × 164,287.60
  4. Step 4: Simplify right side
    186,060.40x = 45,851,124,856.56
  5. Step 5: Solve for x
    x = 45,851,124,856.56/186,060.40
  6. Step 6: Final answer
    x = 246,431.40

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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.