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Finding the Fourth Proportional to 164,018.80, 245,833.80 and 85,092.40

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Solution

The fourth proportional to 164,018.80, 245,833.80 and 85,092.40 is: 127,537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,018.80 : 245,833.80 = 85,092.40 : x
  2. Step 2: Convert to fraction form
    164,018.80/245,833.80 = 85,092.40/x
  3. Step 3: Cross multiply
    164,018.80x = 245,833.80 × 85,092.40
  4. Step 4: Simplify right side
    164,018.80x = 20,918,588,043.12
  5. Step 5: Solve for x
    x = 20,918,588,043.12/164,018.80
  6. Step 6: Final answer
    x = 127,537.75

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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.