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Finding the Fourth Proportional to 123,930.33, 171,024.03 and 70,218.99

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Solution

The fourth proportional to 123,930.33, 171,024.03 and 70,218.99 is: 96,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,930.33 : 171,024.03 = 70,218.99 : x
  2. Step 2: Convert to fraction form
    123,930.33/171,024.03 = 70,218.99/x
  3. Step 3: Cross multiply
    123,930.33x = 171,024.03 × 70,218.99
  4. Step 4: Simplify right side
    123,930.33x = 12,009,134,652.33
  5. Step 5: Solve for x
    x = 12,009,134,652.33/123,930.33
  6. Step 6: Final answer
    x = 96,902.31

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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.