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Finding the Fourth Proportional to 196,620.80, 294,931.20 and 48,876.80

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Solution

The fourth proportional to 196,620.80, 294,931.20 and 48,876.80 is: 73,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,620.80 : 294,931.20 = 48,876.80 : x
  2. Step 2: Convert to fraction form
    196,620.80/294,931.20 = 48,876.80/x
  3. Step 3: Cross multiply
    196,620.80x = 294,931.20 × 48,876.80
  4. Step 4: Simplify right side
    196,620.80x = 14,415,293,276.16
  5. Step 5: Solve for x
    x = 14,415,293,276.16/196,620.80
  6. Step 6: Final answer
    x = 73,315.20

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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.