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Finding the Fourth Proportional to 137,279.84, 189,468.88 and 94,223.96

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Solution

The fourth proportional to 137,279.84, 189,468.88 and 94,223.96 is: 130,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,279.84 : 189,468.88 = 94,223.96 : x
  2. Step 2: Convert to fraction form
    137,279.84/189,468.88 = 94,223.96/x
  3. Step 3: Cross multiply
    137,279.84x = 189,468.88 × 94,223.96
  4. Step 4: Simplify right side
    137,279.84x = 17,852,508,170.36
  5. Step 5: Solve for x
    x = 17,852,508,170.36/137,279.84
  6. Step 6: Final answer
    x = 130,044.65

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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.