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Finding the Fourth Proportional to 102,546.60, 153,819.90 and 47,250.60

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Solution

The fourth proportional to 102,546.60, 153,819.90 and 47,250.60 is: 70,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,546.60 : 153,819.90 = 47,250.60 : x
  2. Step 2: Convert to fraction form
    102,546.60/153,819.90 = 47,250.60/x
  3. Step 3: Cross multiply
    102,546.60x = 153,819.90 × 47,250.60
  4. Step 4: Simplify right side
    102,546.60x = 7,268,082,566.94
  5. Step 5: Solve for x
    x = 7,268,082,566.94/102,546.60
  6. Step 6: Final answer
    x = 70,875.90

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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.