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Finding the Fourth Proportional to 82,756.54, 113,986.48 and 63,599.66

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Solution

The fourth proportional to 82,756.54, 113,986.48 and 63,599.66 is: 87,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,756.54 : 113,986.48 = 63,599.66 : x
  2. Step 2: Convert to fraction form
    82,756.54/113,986.48 = 63,599.66/x
  3. Step 3: Cross multiply
    82,756.54x = 113,986.48 × 63,599.66
  4. Step 4: Simplify right side
    82,756.54x = 7,249,500,484.67
  5. Step 5: Solve for x
    x = 7,249,500,484.67/82,756.54
  6. Step 6: Final answer
    x = 87,600.34

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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.