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Finding the Fourth Proportional to 134,548.50, 185,676.98 and 77,992.68

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Solution

The fourth proportional to 134,548.50, 185,676.98 and 77,992.68 is: 107,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,548.50 : 185,676.98 = 77,992.68 : x
  2. Step 2: Convert to fraction form
    134,548.50/185,676.98 = 77,992.68/x
  3. Step 3: Cross multiply
    134,548.50x = 185,676.98 × 77,992.68
  4. Step 4: Simplify right side
    134,548.50x = 14,481,445,284.51
  5. Step 5: Solve for x
    x = 14,481,445,284.51/134,548.50
  6. Step 6: Final answer
    x = 107,629.93

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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.