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Finding the Fourth Proportional to 122,898.38, 184,347.56 and 70,270.95

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Solution

The fourth proportional to 122,898.38, 184,347.56 and 70,270.95 is: 105,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,898.38 : 184,347.56 = 70,270.95 : x
  2. Step 2: Convert to fraction form
    122,898.38/184,347.56 = 70,270.95/x
  3. Step 3: Cross multiply
    122,898.38x = 184,347.56 × 70,270.95
  4. Step 4: Simplify right side
    122,898.38x = 12,954,279,038.36
  5. Step 5: Solve for x
    x = 12,954,279,038.36/122,898.38
  6. Step 6: Final answer
    x = 105,406.43

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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.