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Finding the Fourth Proportional to 68,392.45, 102,624.80 and 48,530.29

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Solution

The fourth proportional to 68,392.45, 102,624.80 and 48,530.29 is: 72,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,392.45 : 102,624.80 = 48,530.29 : x
  2. Step 2: Convert to fraction form
    68,392.45/102,624.80 = 48,530.29/x
  3. Step 3: Cross multiply
    68,392.45x = 102,624.80 × 48,530.29
  4. Step 4: Simplify right side
    68,392.45x = 4,980,411,062.54
  5. Step 5: Solve for x
    x = 4,980,411,062.54/68,392.45
  6. Step 6: Final answer
    x = 72,821.07

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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.