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Finding the Fourth Proportional to 85,137.90, 117,488.86 and 46,901.02

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Solution

The fourth proportional to 85,137.90, 117,488.86 and 46,901.02 is: 64,722.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,137.90 : 117,488.86 = 46,901.02 : x
  2. Step 2: Convert to fraction form
    85,137.90/117,488.86 = 46,901.02/x
  3. Step 3: Cross multiply
    85,137.90x = 117,488.86 × 46,901.02
  4. Step 4: Simplify right side
    85,137.90x = 5,510,347,372.64
  5. Step 5: Solve for x
    x = 5,510,347,372.64/85,137.90
  6. Step 6: Final answer
    x = 64,722.61

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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.