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Finding the Fourth Proportional to 169,238.84, 253,865.27 and 139,601.48

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Solution

The fourth proportional to 169,238.84, 253,865.27 and 139,601.48 is: 209,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,238.84 : 253,865.27 = 139,601.48 : x
  2. Step 2: Convert to fraction form
    169,238.84/253,865.27 = 139,601.48/x
  3. Step 3: Cross multiply
    169,238.84x = 253,865.27 × 139,601.48
  4. Step 4: Simplify right side
    169,238.84x = 35,439,966,492.28
  5. Step 5: Solve for x
    x = 35,439,966,492.28/169,238.84
  6. Step 6: Final answer
    x = 209,408.00

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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.