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Finding the Fourth Proportional to 68,358.09, 102,548.07 and 28,926.48

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Solution

The fourth proportional to 68,358.09, 102,548.07 and 28,926.48 is: 43,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,358.09 : 102,548.07 = 28,926.48 : x
  2. Step 2: Convert to fraction form
    68,358.09/102,548.07 = 28,926.48/x
  3. Step 3: Cross multiply
    68,358.09x = 102,548.07 × 28,926.48
  4. Step 4: Simplify right side
    68,358.09x = 2,966,354,695.89
  5. Step 5: Solve for x
    x = 2,966,354,695.89/68,358.09
  6. Step 6: Final answer
    x = 43,394.35

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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.