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Finding the Fourth Proportional to 134,314.54, 185,354.49 and 73,889.78

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Solution

The fourth proportional to 134,314.54, 185,354.49 and 73,889.78 is: 101,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,314.54 : 185,354.49 = 73,889.78 : x
  2. Step 2: Convert to fraction form
    134,314.54/185,354.49 = 73,889.78/x
  3. Step 3: Cross multiply
    134,314.54x = 185,354.49 × 73,889.78
  4. Step 4: Simplify right side
    134,314.54x = 13,695,802,533.51
  5. Step 5: Solve for x
    x = 13,695,802,533.51/134,314.54
  6. Step 6: Final answer
    x = 101,968.13

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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.