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Finding the Fourth Proportional to 186,054.40, 279,081.60 and 111,404.80

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Solution

The fourth proportional to 186,054.40, 279,081.60 and 111,404.80 is: 167,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,054.40 : 279,081.60 = 111,404.80 : x
  2. Step 2: Convert to fraction form
    186,054.40/279,081.60 = 111,404.80/x
  3. Step 3: Cross multiply
    186,054.40x = 279,081.60 × 111,404.80
  4. Step 4: Simplify right side
    186,054.40x = 31,091,029,831.68
  5. Step 5: Solve for x
    x = 31,091,029,831.68/186,054.40
  6. Step 6: Final answer
    x = 167,107.20

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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.