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Finding the Fourth Proportional to 186,900.68, 280,393.95 and 53,782.04

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Solution

The fourth proportional to 186,900.68, 280,393.95 and 53,782.04 is: 80,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,900.68 : 280,393.95 = 53,782.04 : x
  2. Step 2: Convert to fraction form
    186,900.68/280,393.95 = 53,782.04/x
  3. Step 3: Cross multiply
    186,900.68x = 280,393.95 × 53,782.04
  4. Step 4: Simplify right side
    186,900.68x = 15,080,157,232.69
  5. Step 5: Solve for x
    x = 15,080,157,232.69/186,900.68
  6. Step 6: Final answer
    x = 80,685.41

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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.