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Finding the Fourth Proportional to 186,380.51, 279,531.07 and 53,225.42

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Solution

The fourth proportional to 186,380.51, 279,531.07 and 53,225.42 is: 79,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,380.51 : 279,531.07 = 53,225.42 : x
  2. Step 2: Convert to fraction form
    186,380.51/279,531.07 = 53,225.42/x
  3. Step 3: Cross multiply
    186,380.51x = 279,531.07 × 53,225.42
  4. Step 4: Simplify right side
    186,380.51x = 14,878,158,603.80
  5. Step 5: Solve for x
    x = 14,878,158,603.80/186,380.51
  6. Step 6: Final answer
    x = 79,826.79

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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.