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Finding the Fourth Proportional to 119,196.72, 178,796.64 and 51,713.28

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Solution

The fourth proportional to 119,196.72, 178,796.64 and 51,713.28 is: 77,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,196.72 : 178,796.64 = 51,713.28 : x
  2. Step 2: Convert to fraction form
    119,196.72/178,796.64 = 51,713.28/x
  3. Step 3: Cross multiply
    119,196.72x = 178,796.64 × 51,713.28
  4. Step 4: Simplify right side
    119,196.72x = 9,246,160,707.38
  5. Step 5: Solve for x
    x = 9,246,160,707.38/119,196.72
  6. Step 6: Final answer
    x = 77,570.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.