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Finding the Fourth Proportional to 83,825.34, 125,699.13 and 48,775.02

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Solution

The fourth proportional to 83,825.34, 125,699.13 and 48,775.02 is: 73,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,825.34 : 125,699.13 = 48,775.02 : x
  2. Step 2: Convert to fraction form
    83,825.34/125,699.13 = 48,775.02/x
  3. Step 3: Cross multiply
    83,825.34x = 125,699.13 × 48,775.02
  4. Step 4: Simplify right side
    83,825.34x = 6,130,977,579.73
  5. Step 5: Solve for x
    x = 6,130,977,579.73/83,825.34
  6. Step 6: Final answer
    x = 73,139.91

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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.