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Finding the Fourth Proportional to 104,441.20, 156,661.80 and 51,953.20

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Solution

The fourth proportional to 104,441.20, 156,661.80 and 51,953.20 is: 77,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,441.20 : 156,661.80 = 51,953.20 : x
  2. Step 2: Convert to fraction form
    104,441.20/156,661.80 = 51,953.20/x
  3. Step 3: Cross multiply
    104,441.20x = 156,661.80 × 51,953.20
  4. Step 4: Simplify right side
    104,441.20x = 8,139,081,827.76
  5. Step 5: Solve for x
    x = 8,139,081,827.76/104,441.20
  6. Step 6: Final answer
    x = 77,929.80

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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.