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Finding the Fourth Proportional to 100,992.49, 151,490.05 and 48,389.67

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Solution

The fourth proportional to 100,992.49, 151,490.05 and 48,389.67 is: 72,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,992.49 : 151,490.05 = 48,389.67 : x
  2. Step 2: Convert to fraction form
    100,992.49/151,490.05 = 48,389.67/x
  3. Step 3: Cross multiply
    100,992.49x = 151,490.05 × 48,389.67
  4. Step 4: Simplify right side
    100,992.49x = 7,330,553,406.81
  5. Step 5: Solve for x
    x = 7,330,553,406.81/100,992.49
  6. Step 6: Final answer
    x = 72,585.14

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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.