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Finding the Fourth Proportional to 186,217.43, 279,328.74 and 53,097.74

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Solution

The fourth proportional to 186,217.43, 279,328.74 and 53,097.74 is: 79,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,217.43 : 279,328.74 = 53,097.74 : x
  2. Step 2: Convert to fraction form
    186,217.43/279,328.74 = 53,097.74/x
  3. Step 3: Cross multiply
    186,217.43x = 279,328.74 × 53,097.74
  4. Step 4: Simplify right side
    186,217.43x = 14,831,724,811.05
  5. Step 5: Solve for x
    x = 14,831,724,811.05/186,217.43
  6. Step 6: Final answer
    x = 79,647.35

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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.