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Finding the Fourth Proportional to 186,151.68, 279,144.48 and 53,000.79

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Solution

The fourth proportional to 186,151.68, 279,144.48 and 53,000.79 is: 79,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,151.68 : 279,144.48 = 53,000.79 : x
  2. Step 2: Convert to fraction form
    186,151.68/279,144.48 = 53,000.79/x
  3. Step 3: Cross multiply
    186,151.68x = 279,144.48 × 53,000.79
  4. Step 4: Simplify right side
    186,151.68x = 14,794,877,964.14
  5. Step 5: Solve for x
    x = 14,794,877,964.14/186,151.68
  6. Step 6: Final answer
    x = 79,477.54

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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.