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Finding the Fourth Proportional to 155,107.57, 232,662.35 and 84,948.61

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Solution

The fourth proportional to 155,107.57, 232,662.35 and 84,948.61 is: 127,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,107.57 : 232,662.35 = 84,948.61 : x
  2. Step 2: Convert to fraction form
    155,107.57/232,662.35 = 84,948.61/x
  3. Step 3: Cross multiply
    155,107.57x = 232,662.35 × 84,948.61
  4. Step 4: Simplify right side
    155,107.57x = 19,764,343,231.83
  5. Step 5: Solve for x
    x = 19,764,343,231.83/155,107.57
  6. Step 6: Final answer
    x = 127,423.46

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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.