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Finding the Fourth Proportional to 69,756.77, 96,279.63 and 45,885.80

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Solution

The fourth proportional to 69,756.77, 96,279.63 and 45,885.80 is: 63,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,756.77 : 96,279.63 = 45,885.80 : x
  2. Step 2: Convert to fraction form
    69,756.77/96,279.63 = 45,885.80/x
  3. Step 3: Cross multiply
    69,756.77x = 96,279.63 × 45,885.80
  4. Step 4: Simplify right side
    69,756.77x = 4,417,867,846.25
  5. Step 5: Solve for x
    x = 4,417,867,846.25/69,756.77
  6. Step 6: Final answer
    x = 63,332.46

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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.