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Finding the Fourth Proportional to 216,809.66, 298,998.56 and 186,172.35

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Solution

The fourth proportional to 216,809.66, 298,998.56 and 186,172.35 is: 256,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,809.66 : 298,998.56 = 186,172.35 : x
  2. Step 2: Convert to fraction form
    216,809.66/298,998.56 = 186,172.35/x
  3. Step 3: Cross multiply
    216,809.66x = 298,998.56 × 186,172.35
  4. Step 4: Simplify right side
    216,809.66x = 55,665,263,630.95
  5. Step 5: Solve for x
    x = 55,665,263,630.95/216,809.66
  6. Step 6: Final answer
    x = 256,747.16

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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.