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Finding the Fourth Proportional to 353,624.44, 488,012.10 and 192,490

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Solution

The fourth proportional to 353,624.44, 488,012.10 and 192,490 is: 265,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,624.44 : 488,012.10 = 192,490 : x
  2. Step 2: Convert to fraction form
    353,624.44/488,012.10 = 192,490/x
  3. Step 3: Cross multiply
    353,624.44x = 488,012.10 × 192,490
  4. Step 4: Simplify right side
    353,624.44x = 93,937,449,129
  5. Step 5: Solve for x
    x = 93,937,449,129/353,624.44
  6. Step 6: Final answer
    x = 265,641.85

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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.