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Finding the Fourth Proportional to 173,042.80, 259,564.20 and 138,050.80

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Solution

The fourth proportional to 173,042.80, 259,564.20 and 138,050.80 is: 207,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,042.80 : 259,564.20 = 138,050.80 : x
  2. Step 2: Convert to fraction form
    173,042.80/259,564.20 = 138,050.80/x
  3. Step 3: Cross multiply
    173,042.80x = 259,564.20 × 138,050.80
  4. Step 4: Simplify right side
    173,042.80x = 35,833,045,461.36
  5. Step 5: Solve for x
    x = 35,833,045,461.36/173,042.80
  6. Step 6: Final answer
    x = 207,076.20

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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.