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Finding the Fourth Proportional to 82,909.76, 114,415.48 and 45,184

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Solution

The fourth proportional to 82,909.76, 114,415.48 and 45,184 is: 62,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,909.76 : 114,415.48 = 45,184 : x
  2. Step 2: Convert to fraction form
    82,909.76/114,415.48 = 45,184/x
  3. Step 3: Cross multiply
    82,909.76x = 114,415.48 × 45,184
  4. Step 4: Simplify right side
    82,909.76x = 5,169,749,048.32
  5. Step 5: Solve for x
    x = 5,169,749,048.32/82,909.76
  6. Step 6: Final answer
    x = 62,353.93

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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.