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Finding the Fourth Proportional to 133,085.60, 199,725.60 and 93,719.60

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Solution

The fourth proportional to 133,085.60, 199,725.60 and 93,719.60 is: 140,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.60 : 199,725.60 = 93,719.60 : x
  2. Step 2: Convert to fraction form
    133,085.60/199,725.60 = 93,719.60/x
  3. Step 3: Cross multiply
    133,085.60x = 199,725.60 × 93,719.60
  4. Step 4: Simplify right side
    133,085.60x = 18,718,203,341.76
  5. Step 5: Solve for x
    x = 18,718,203,341.76/133,085.60
  6. Step 6: Final answer
    x = 140,647.85

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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.