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Finding the Fourth Proportional to 186,657.79, 279,955.90 and 80,059.01

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Solution

The fourth proportional to 186,657.79, 279,955.90 and 80,059.01 is: 120,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,657.79 : 279,955.90 = 80,059.01 : x
  2. Step 2: Convert to fraction form
    186,657.79/279,955.90 = 80,059.01/x
  3. Step 3: Cross multiply
    186,657.79x = 279,955.90 × 80,059.01
  4. Step 4: Simplify right side
    186,657.79x = 22,412,991,235.00
  5. Step 5: Solve for x
    x = 22,412,991,235.00/186,657.79
  6. Step 6: Final answer
    x = 120,075.30

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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.