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Finding the Fourth Proportional to 68,154.35, 94,089.89 and 47,798.91

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Solution

The fourth proportional to 68,154.35, 94,089.89 and 47,798.91 is: 65,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,154.35 : 94,089.89 = 47,798.91 : x
  2. Step 2: Convert to fraction form
    68,154.35/94,089.89 = 47,798.91/x
  3. Step 3: Cross multiply
    68,154.35x = 94,089.89 × 47,798.91
  4. Step 4: Simplify right side
    68,154.35x = 4,497,394,303.52
  5. Step 5: Solve for x
    x = 4,497,394,303.52/68,154.35
  6. Step 6: Final answer
    x = 65,988.37

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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.