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Finding the Fourth Proportional to 194,443.45, 268,332.05 and 105,019.45

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Solution

The fourth proportional to 194,443.45, 268,332.05 and 105,019.45 is: 144,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,443.45 : 268,332.05 = 105,019.45 : x
  2. Step 2: Convert to fraction form
    194,443.45/268,332.05 = 105,019.45/x
  3. Step 3: Cross multiply
    194,443.45x = 268,332.05 × 105,019.45
  4. Step 4: Simplify right side
    194,443.45x = 28,180,084,308.37
  5. Step 5: Solve for x
    x = 28,180,084,308.37/194,443.45
  6. Step 6: Final answer
    x = 144,926.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.