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Finding the Fourth Proportional to 118,401.40, 176,738.38 and 103,454.46

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Solution

The fourth proportional to 118,401.40, 176,738.38 and 103,454.46 is: 154,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,401.40 : 176,738.38 = 103,454.46 : x
  2. Step 2: Convert to fraction form
    118,401.40/176,738.38 = 103,454.46/x
  3. Step 3: Cross multiply
    118,401.40x = 176,738.38 × 103,454.46
  4. Step 4: Simplify right side
    118,401.40x = 18,284,373,664.17
  5. Step 5: Solve for x
    x = 18,284,373,664.17/118,401.40
  6. Step 6: Final answer
    x = 154,427.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.