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Finding the Fourth Proportional to 117,477.36, 162,118.90 and 63,762.36

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Solution

The fourth proportional to 117,477.36, 162,118.90 and 63,762.36 is: 87,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.36 : 162,118.90 = 63,762.36 : x
  2. Step 2: Convert to fraction form
    117,477.36/162,118.90 = 63,762.36/x
  3. Step 3: Cross multiply
    117,477.36x = 162,118.90 × 63,762.36
  4. Step 4: Simplify right side
    117,477.36x = 10,337,083,664.60
  5. Step 5: Solve for x
    x = 10,337,083,664.60/117,477.36
  6. Step 6: Final answer
    x = 87,992.13

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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.