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Finding the Fourth Proportional to 186,242.99, 279,318.20 and 53,124.39

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Solution

The fourth proportional to 186,242.99, 279,318.20 and 53,124.39 is: 79,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,242.99 : 279,318.20 = 53,124.39 : x
  2. Step 2: Convert to fraction form
    186,242.99/279,318.20 = 53,124.39/x
  3. Step 3: Cross multiply
    186,242.99x = 279,318.20 × 53,124.39
  4. Step 4: Simplify right side
    186,242.99x = 14,838,608,725.28
  5. Step 5: Solve for x
    x = 14,838,608,725.28/186,242.99
  6. Step 6: Final answer
    x = 79,673.38

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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.