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Finding the Fourth Proportional to 186,294.48, 279,357.67 and 53,143.03

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Solution

The fourth proportional to 186,294.48, 279,357.67 and 53,143.03 is: 79,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,294.48 : 279,357.67 = 53,143.03 : x
  2. Step 2: Convert to fraction form
    186,294.48/279,357.67 = 53,143.03/x
  3. Step 3: Cross multiply
    186,294.48x = 279,357.67 × 53,143.03
  4. Step 4: Simplify right side
    186,294.48x = 14,845,913,037.54
  5. Step 5: Solve for x
    x = 14,845,913,037.54/186,294.48
  6. Step 6: Final answer
    x = 79,690.57

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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.