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Finding the Fourth Proportional to 73,026, 100,776.65 and 40,763.66

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Solution

The fourth proportional to 73,026, 100,776.65 and 40,763.66 is: 56,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,026 : 100,776.65 = 40,763.66 : x
  2. Step 2: Convert to fraction form
    73,026/100,776.65 = 40,763.66/x
  3. Step 3: Cross multiply
    73,026x = 100,776.65 × 40,763.66
  4. Step 4: Simplify right side
    73,026x = 4,108,024,388.84
  5. Step 5: Solve for x
    x = 4,108,024,388.84/73,026
  6. Step 6: Final answer
    x = 56,254.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.