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Finding the Fourth Proportional to 123,052.40, 169,828.48 and 69,347.84

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Solution

The fourth proportional to 123,052.40, 169,828.48 and 69,347.84 is: 95,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,052.40 : 169,828.48 = 69,347.84 : x
  2. Step 2: Convert to fraction form
    123,052.40/169,828.48 = 69,347.84/x
  3. Step 3: Cross multiply
    123,052.40x = 169,828.48 × 69,347.84
  4. Step 4: Simplify right side
    123,052.40x = 11,777,238,258.48
  5. Step 5: Solve for x
    x = 11,777,238,258.48/123,052.40
  6. Step 6: Final answer
    x = 95,709.13

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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.