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Finding the Fourth Proportional to 185,416.80, 278,708.40 and 181,917.60

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Solution

The fourth proportional to 185,416.80, 278,708.40 and 181,917.60 is: 273,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,416.80 : 278,708.40 = 181,917.60 : x
  2. Step 2: Convert to fraction form
    185,416.80/278,708.40 = 181,917.60/x
  3. Step 3: Cross multiply
    185,416.80x = 278,708.40 × 181,917.60
  4. Step 4: Simplify right side
    185,416.80x = 50,701,963,227.84
  5. Step 5: Solve for x
    x = 50,701,963,227.84/185,416.80
  6. Step 6: Final answer
    x = 273,448.59

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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.