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Finding the Fourth Proportional to 194,482.62, 268,435.95 and 126,668.58

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Solution

The fourth proportional to 194,482.62, 268,435.95 and 126,668.58 is: 174,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,482.62 : 268,435.95 = 126,668.58 : x
  2. Step 2: Convert to fraction form
    194,482.62/268,435.95 = 126,668.58/x
  3. Step 3: Cross multiply
    194,482.62x = 268,435.95 × 126,668.58
  4. Step 4: Simplify right side
    194,482.62x = 34,002,400,607.45
  5. Step 5: Solve for x
    x = 34,002,400,607.45/194,482.62
  6. Step 6: Final answer
    x = 174,835.16

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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.