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Finding the Fourth Proportional to 90,686.95, 125,147.52 and 49,852.03

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Solution

The fourth proportional to 90,686.95, 125,147.52 and 49,852.03 is: 68,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,686.95 : 125,147.52 = 49,852.03 : x
  2. Step 2: Convert to fraction form
    90,686.95/125,147.52 = 49,852.03/x
  3. Step 3: Cross multiply
    90,686.95x = 125,147.52 × 49,852.03
  4. Step 4: Simplify right side
    90,686.95x = 6,238,857,921.47
  5. Step 5: Solve for x
    x = 6,238,857,921.47/90,686.95
  6. Step 6: Final answer
    x = 68,795.54

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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.