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Finding the Fourth Proportional to 104,071.84, 155,354.70 and 91,460.82

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Solution

The fourth proportional to 104,071.84, 155,354.70 and 91,460.82 is: 136,529.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,071.84 : 155,354.70 = 91,460.82 : x
  2. Step 2: Convert to fraction form
    104,071.84/155,354.70 = 91,460.82/x
  3. Step 3: Cross multiply
    104,071.84x = 155,354.70 × 91,460.82
  4. Step 4: Simplify right side
    104,071.84x = 14,208,868,252.85
  5. Step 5: Solve for x
    x = 14,208,868,252.85/104,071.84
  6. Step 6: Final answer
    x = 136,529.42

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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.