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Finding the Fourth Proportional to 101,426.60, 139,957.94 and 56,097.38

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Solution

The fourth proportional to 101,426.60, 139,957.94 and 56,097.38 is: 77,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,426.60 : 139,957.94 = 56,097.38 : x
  2. Step 2: Convert to fraction form
    101,426.60/139,957.94 = 56,097.38/x
  3. Step 3: Cross multiply
    101,426.60x = 139,957.94 × 56,097.38
  4. Step 4: Simplify right side
    101,426.60x = 7,851,274,234.34
  5. Step 5: Solve for x
    x = 7,851,274,234.34/101,426.60
  6. Step 6: Final answer
    x = 77,408.43

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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.