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Finding the Fourth Proportional to 139,695.44, 192,697.80 and 101,409.98

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Solution

The fourth proportional to 139,695.44, 192,697.80 and 101,409.98 is: 139,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,695.44 : 192,697.80 = 101,409.98 : x
  2. Step 2: Convert to fraction form
    139,695.44/192,697.80 = 101,409.98/x
  3. Step 3: Cross multiply
    139,695.44x = 192,697.80 × 101,409.98
  4. Step 4: Simplify right side
    139,695.44x = 19,541,480,044.04
  5. Step 5: Solve for x
    x = 19,541,480,044.04/139,695.44
  6. Step 6: Final answer
    x = 139,886.31

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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.