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Finding the Fourth Proportional to 186,299.60, 279,427.80 and 53,200.40

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Solution

The fourth proportional to 186,299.60, 279,427.80 and 53,200.40 is: 79,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,299.60 : 279,427.80 = 53,200.40 : x
  2. Step 2: Convert to fraction form
    186,299.60/279,427.80 = 53,200.40/x
  3. Step 3: Cross multiply
    186,299.60x = 279,427.80 × 53,200.40
  4. Step 4: Simplify right side
    186,299.60x = 14,865,670,731.12
  5. Step 5: Solve for x
    x = 14,865,670,731.12/186,299.60
  6. Step 6: Final answer
    x = 79,794.43

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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.