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Finding the Fourth Proportional to 107,880.70, 161,795.10 and 55,263.10

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Solution

The fourth proportional to 107,880.70, 161,795.10 and 55,263.10 is: 82,881.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,880.70 : 161,795.10 = 55,263.10 : x
  2. Step 2: Convert to fraction form
    107,880.70/161,795.10 = 55,263.10/x
  3. Step 3: Cross multiply
    107,880.70x = 161,795.10 × 55,263.10
  4. Step 4: Simplify right side
    107,880.70x = 8,941,298,790.81
  5. Step 5: Solve for x
    x = 8,941,298,790.81/107,880.70
  6. Step 6: Final answer
    x = 82,881.36

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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.