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Finding the Fourth Proportional to 122,886.39, 184,329.50 and 70,258.97

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Solution

The fourth proportional to 122,886.39, 184,329.50 and 70,258.97 is: 105,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,886.39 : 184,329.50 = 70,258.97 : x
  2. Step 2: Convert to fraction form
    122,886.39/184,329.50 = 70,258.97/x
  3. Step 3: Cross multiply
    122,886.39x = 184,329.50 × 70,258.97
  4. Step 4: Simplify right side
    122,886.39x = 12,950,800,810.62
  5. Step 5: Solve for x
    x = 12,950,800,810.62/122,886.39
  6. Step 6: Final answer
    x = 105,388.41

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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.