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Finding the Fourth Proportional to 216,219.61, 298,218.86 and 186,055.48

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Solution

The fourth proportional to 216,219.61, 298,218.86 and 186,055.48 is: 256,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,219.61 : 298,218.86 = 186,055.48 : x
  2. Step 2: Convert to fraction form
    216,219.61/298,218.86 = 186,055.48/x
  3. Step 3: Cross multiply
    216,219.61x = 298,218.86 × 186,055.48
  4. Step 4: Simplify right side
    216,219.61x = 55,485,251,651.26
  5. Step 5: Solve for x
    x = 55,485,251,651.26/216,219.61
  6. Step 6: Final answer
    x = 256,615.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.