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Finding the Fourth Proportional to 186,558.60, 279,735.30 and 127,461

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Solution

The fourth proportional to 186,558.60, 279,735.30 and 127,461 is: 191,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,558.60 : 279,735.30 = 127,461 : x
  2. Step 2: Convert to fraction form
    186,558.60/279,735.30 = 127,461/x
  3. Step 3: Cross multiply
    186,558.60x = 279,735.30 × 127,461
  4. Step 4: Simplify right side
    186,558.60x = 35,655,341,073.30
  5. Step 5: Solve for x
    x = 35,655,341,073.30/186,558.60
  6. Step 6: Final answer
    x = 191,121.40

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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.