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Finding the Fourth Proportional to 103,263.80, 154,764.47 and 56,462.00

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Solution

The fourth proportional to 103,263.80, 154,764.47 and 56,462.00 is: 84,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,263.80 : 154,764.47 = 56,462.00 : x
  2. Step 2: Convert to fraction form
    103,263.80/154,764.47 = 56,462.00/x
  3. Step 3: Cross multiply
    103,263.80x = 154,764.47 × 56,462.00
  4. Step 4: Simplify right side
    103,263.80x = 8,738,310,872.47
  5. Step 5: Solve for x
    x = 8,738,310,872.47/103,263.80
  6. Step 6: Final answer
    x = 84,621.24

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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.