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Finding the Fourth Proportional to 132,987.51, 199,369.01 and 61,873.45

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Solution

The fourth proportional to 132,987.51, 199,369.01 and 61,873.45 is: 92,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,987.51 : 199,369.01 = 61,873.45 : x
  2. Step 2: Convert to fraction form
    132,987.51/199,369.01 = 61,873.45/x
  3. Step 3: Cross multiply
    132,987.51x = 199,369.01 × 61,873.45
  4. Step 4: Simplify right side
    132,987.51x = 12,335,648,128.05
  5. Step 5: Solve for x
    x = 12,335,648,128.05/132,987.51
  6. Step 6: Final answer
    x = 92,757.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.