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Finding the Fourth Proportional to 91,230.84, 125,897.37 and 50,945.31

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Solution

The fourth proportional to 91,230.84, 125,897.37 and 50,945.31 is: 70,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,230.84 : 125,897.37 = 50,945.31 : x
  2. Step 2: Convert to fraction form
    91,230.84/125,897.37 = 50,945.31/x
  3. Step 3: Cross multiply
    91,230.84x = 125,897.37 × 50,945.31
  4. Step 4: Simplify right side
    91,230.84x = 6,413,880,542.83
  5. Step 5: Solve for x
    x = 6,413,880,542.83/91,230.84
  6. Step 6: Final answer
    x = 70,303.86

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1.5x scale

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.