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Finding the Fourth Proportional to 186,609.82, 279,915.44 and 56,779.89

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Solution

The fourth proportional to 186,609.82, 279,915.44 and 56,779.89 is: 85,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,609.82 : 279,915.44 = 56,779.89 : x
  2. Step 2: Convert to fraction form
    186,609.82/279,915.44 = 56,779.89/x
  3. Step 3: Cross multiply
    186,609.82x = 279,915.44 × 56,779.89
  4. Step 4: Simplify right side
    186,609.82x = 15,893,567,825.26
  5. Step 5: Solve for x
    x = 15,893,567,825.26/186,609.82
  6. Step 6: Final answer
    x = 85,170.05

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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.