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Finding the Fourth Proportional to 139,464.93, 192,461.85 and 75,802.56

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Solution

The fourth proportional to 139,464.93, 192,461.85 and 75,802.56 is: 104,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,464.93 : 192,461.85 = 75,802.56 : x
  2. Step 2: Convert to fraction form
    139,464.93/192,461.85 = 75,802.56/x
  3. Step 3: Cross multiply
    139,464.93x = 192,461.85 × 75,802.56
  4. Step 4: Simplify right side
    139,464.93x = 14,589,100,932.34
  5. Step 5: Solve for x
    x = 14,589,100,932.34/139,464.93
  6. Step 6: Final answer
    x = 104,607.67

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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.