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Finding the Fourth Proportional to 76,763.01, 115,095.33 and 53,004

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Solution

The fourth proportional to 76,763.01, 115,095.33 and 53,004 is: 79,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,763.01 : 115,095.33 = 53,004 : x
  2. Step 2: Convert to fraction form
    76,763.01/115,095.33 = 53,004/x
  3. Step 3: Cross multiply
    76,763.01x = 115,095.33 × 53,004
  4. Step 4: Simplify right side
    76,763.01x = 6,100,512,871.32
  5. Step 5: Solve for x
    x = 6,100,512,871.32/76,763.01
  6. Step 6: Final answer
    x = 79,472.04

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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.