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Finding the Fourth Proportional to 105,364.70, 158,047.05 and 104,708.60

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Solution

The fourth proportional to 105,364.70, 158,047.05 and 104,708.60 is: 157,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.70 : 158,047.05 = 104,708.60 : x
  2. Step 2: Convert to fraction form
    105,364.70/158,047.05 = 104,708.60/x
  3. Step 3: Cross multiply
    105,364.70x = 158,047.05 × 104,708.60
  4. Step 4: Simplify right side
    105,364.70x = 16,548,885,339.63
  5. Step 5: Solve for x
    x = 16,548,885,339.63/105,364.70
  6. Step 6: Final answer
    x = 157,062.90

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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.