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Finding the Fourth Proportional to 117,957.44, 162,779.64 and 67,655.36

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Solution

The fourth proportional to 117,957.44, 162,779.64 and 67,655.36 is: 93,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,957.44 : 162,779.64 = 67,655.36 : x
  2. Step 2: Convert to fraction form
    117,957.44/162,779.64 = 67,655.36/x
  3. Step 3: Cross multiply
    117,957.44x = 162,779.64 × 67,655.36
  4. Step 4: Simplify right side
    117,957.44x = 11,012,915,144.87
  5. Step 5: Solve for x
    x = 11,012,915,144.87/117,957.44
  6. Step 6: Final answer
    x = 93,363.46

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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.