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Finding the Fourth Proportional to 101,354.49, 139,789.31 and 94,563.81

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Solution

The fourth proportional to 101,354.49, 139,789.31 and 94,563.81 is: 130,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,354.49 : 139,789.31 = 94,563.81 : x
  2. Step 2: Convert to fraction form
    101,354.49/139,789.31 = 94,563.81/x
  3. Step 3: Cross multiply
    101,354.49x = 139,789.31 × 94,563.81
  4. Step 4: Simplify right side
    101,354.49x = 13,219,009,278.05
  5. Step 5: Solve for x
    x = 13,219,009,278.05/101,354.49
  6. Step 6: Final answer
    x = 130,423.52

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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.