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Finding the Fourth Proportional to 186,636.02, 279,871.66 and 53,486.06

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Solution

The fourth proportional to 186,636.02, 279,871.66 and 53,486.06 is: 80,205.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,636.02 : 279,871.66 = 53,486.06 : x
  2. Step 2: Convert to fraction form
    186,636.02/279,871.66 = 53,486.06/x
  3. Step 3: Cross multiply
    186,636.02x = 279,871.66 × 53,486.06
  4. Step 4: Simplify right side
    186,636.02x = 14,969,232,399.06
  5. Step 5: Solve for x
    x = 14,969,232,399.06/186,636.02
  6. Step 6: Final answer
    x = 80,205.48

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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.