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Finding the Fourth Proportional to 103,083.34, 154,684.48 and 55,698.57

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Solution

The fourth proportional to 103,083.34, 154,684.48 and 55,698.57 is: 83,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,083.34 : 154,684.48 = 55,698.57 : x
  2. Step 2: Convert to fraction form
    103,083.34/154,684.48 = 55,698.57/x
  3. Step 3: Cross multiply
    103,083.34x = 154,684.48 × 55,698.57
  4. Step 4: Simplify right side
    103,083.34x = 8,615,704,089.73
  5. Step 5: Solve for x
    x = 8,615,704,089.73/103,083.34
  6. Step 6: Final answer
    x = 83,579.98

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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.