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Finding the Fourth Proportional to 186,224.40, 279,336.60 and 111,574.80

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Solution

The fourth proportional to 186,224.40, 279,336.60 and 111,574.80 is: 167,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,224.40 : 279,336.60 = 111,574.80 : x
  2. Step 2: Convert to fraction form
    186,224.40/279,336.60 = 111,574.80/x
  3. Step 3: Cross multiply
    186,224.40x = 279,336.60 × 111,574.80
  4. Step 4: Simplify right side
    186,224.40x = 31,166,925,277.68
  5. Step 5: Solve for x
    x = 31,166,925,277.68/186,224.40
  6. Step 6: Final answer
    x = 167,362.20

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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.