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Finding the Fourth Proportional to 111,675.36, 167,488.92 and 39,637.92

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Solution

The fourth proportional to 111,675.36, 167,488.92 and 39,637.92 is: 59,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,675.36 : 167,488.92 = 39,637.92 : x
  2. Step 2: Convert to fraction form
    111,675.36/167,488.92 = 39,637.92/x
  3. Step 3: Cross multiply
    111,675.36x = 167,488.92 × 39,637.92
  4. Step 4: Simplify right side
    111,675.36x = 6,638,912,411.85
  5. Step 5: Solve for x
    x = 6,638,912,411.85/111,675.36
  6. Step 6: Final answer
    x = 59,448.32

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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.