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Finding the Fourth Proportional to 186,615.20, 279,838.56 and 53,464.98

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Solution

The fourth proportional to 186,615.20, 279,838.56 and 53,464.98 is: 80,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,615.20 : 279,838.56 = 53,464.98 : x
  2. Step 2: Convert to fraction form
    186,615.20/279,838.56 = 53,464.98/x
  3. Step 3: Cross multiply
    186,615.20x = 279,838.56 × 53,464.98
  4. Step 4: Simplify right side
    186,615.20x = 14,961,563,013.63
  5. Step 5: Solve for x
    x = 14,961,563,013.63/186,615.20
  6. Step 6: Final answer
    x = 80,173.34

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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.