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Finding the Fourth Proportional to 116,854.55, 175,143.42 and 53,621.37

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Solution

The fourth proportional to 116,854.55, 175,143.42 and 53,621.37 is: 80,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,854.55 : 175,143.42 = 53,621.37 : x
  2. Step 2: Convert to fraction form
    116,854.55/175,143.42 = 53,621.37/x
  3. Step 3: Cross multiply
    116,854.55x = 175,143.42 × 53,621.37
  4. Step 4: Simplify right side
    116,854.55x = 9,391,430,202.29
  5. Step 5: Solve for x
    x = 9,391,430,202.29/116,854.55
  6. Step 6: Final answer
    x = 80,368.55

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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.