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Finding the Fourth Proportional to 186,074.40, 279,111.60 and 178,816.80

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Solution

The fourth proportional to 186,074.40, 279,111.60 and 178,816.80 is: 268,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,074.40 : 279,111.60 = 178,816.80 : x
  2. Step 2: Convert to fraction form
    186,074.40/279,111.60 = 178,816.80/x
  3. Step 3: Cross multiply
    186,074.40x = 279,111.60 × 178,816.80
  4. Step 4: Simplify right side
    186,074.40x = 49,909,843,154.88
  5. Step 5: Solve for x
    x = 49,909,843,154.88/186,074.40
  6. Step 6: Final answer
    x = 268,225.20

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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.