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Finding the Fourth Proportional to 186,638.84, 279,900.84 and 53,483.40

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Solution

The fourth proportional to 186,638.84, 279,900.84 and 53,483.40 is: 80,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,638.84 : 279,900.84 = 53,483.40 : x
  2. Step 2: Convert to fraction form
    186,638.84/279,900.84 = 53,483.40/x
  3. Step 3: Cross multiply
    186,638.84x = 279,900.84 × 53,483.40
  4. Step 4: Simplify right side
    186,638.84x = 14,970,048,586.06
  5. Step 5: Solve for x
    x = 14,970,048,586.06/186,638.84
  6. Step 6: Final answer
    x = 80,208.65

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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.