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Finding the Fourth Proportional to 79,902.40, 119,623.20 and 48,798.40

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Solution

The fourth proportional to 79,902.40, 119,623.20 and 48,798.40 is: 73,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.40 : 119,623.20 = 48,798.40 : x
  2. Step 2: Convert to fraction form
    79,902.40/119,623.20 = 48,798.40/x
  3. Step 3: Cross multiply
    79,902.40x = 119,623.20 × 48,798.40
  4. Step 4: Simplify right side
    79,902.40x = 5,837,420,762.88
  5. Step 5: Solve for x
    x = 5,837,420,762.88/79,902.40
  6. Step 6: Final answer
    x = 73,056.89

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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.