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Finding the Fourth Proportional to 139,672.44, 192,748.56 and 76,010.16

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Solution

The fourth proportional to 139,672.44, 192,748.56 and 76,010.16 is: 104,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,672.44 : 192,748.56 = 76,010.16 : x
  2. Step 2: Convert to fraction form
    139,672.44/192,748.56 = 76,010.16/x
  3. Step 3: Cross multiply
    139,672.44x = 192,748.56 × 76,010.16
  4. Step 4: Simplify right side
    139,672.44x = 14,650,848,885.37
  5. Step 5: Solve for x
    x = 14,650,848,885.37/139,672.44
  6. Step 6: Final answer
    x = 104,894.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.