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Finding the Fourth Proportional to 168,585.57, 252,914.81 and 89,688.33

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Solution

The fourth proportional to 168,585.57, 252,914.81 and 89,688.33 is: 134,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,585.57 : 252,914.81 = 89,688.33 : x
  2. Step 2: Convert to fraction form
    168,585.57/252,914.81 = 89,688.33/x
  3. Step 3: Cross multiply
    168,585.57x = 252,914.81 × 89,688.33
  4. Step 4: Simplify right side
    168,585.57x = 22,683,506,492.73
  5. Step 5: Solve for x
    x = 22,683,506,492.73/168,585.57
  6. Step 6: Final answer
    x = 134,551.89

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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.