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Finding the Fourth Proportional to 186,306.55, 279,503.21 and 53,188.63

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Solution

The fourth proportional to 186,306.55, 279,503.21 and 53,188.63 is: 79,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,306.55 : 279,503.21 = 53,188.63 : x
  2. Step 2: Convert to fraction form
    186,306.55/279,503.21 = 53,188.63/x
  3. Step 3: Cross multiply
    186,306.55x = 279,503.21 × 53,188.63
  4. Step 4: Simplify right side
    186,306.55x = 14,866,392,820.50
  5. Step 5: Solve for x
    x = 14,866,392,820.50/186,306.55
  6. Step 6: Final answer
    x = 79,795.33

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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.