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Finding the Fourth Proportional to 139,866.29, 193,086.95 and 94,782.47

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Solution

The fourth proportional to 139,866.29, 193,086.95 and 94,782.47 is: 130,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,866.29 : 193,086.95 = 94,782.47 : x
  2. Step 2: Convert to fraction form
    139,866.29/193,086.95 = 94,782.47/x
  3. Step 3: Cross multiply
    139,866.29x = 193,086.95 × 94,782.47
  4. Step 4: Simplify right side
    139,866.29x = 18,301,257,317.29
  5. Step 5: Solve for x
    x = 18,301,257,317.29/139,866.29
  6. Step 6: Final answer
    x = 130,848.24

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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.