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Finding the Fourth Proportional to 69,303.80, 95,663.09 and 40,632.71

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Solution

The fourth proportional to 69,303.80, 95,663.09 and 40,632.71 is: 56,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.80 : 95,663.09 = 40,632.71 : x
  2. Step 2: Convert to fraction form
    69,303.80/95,663.09 = 40,632.71/x
  3. Step 3: Cross multiply
    69,303.80x = 95,663.09 × 40,632.71
  4. Step 4: Simplify right side
    69,303.80x = 3,887,050,216.94
  5. Step 5: Solve for x
    x = 3,887,050,216.94/69,303.80
  6. Step 6: Final answer
    x = 56,087.11

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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.