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Finding the Fourth Proportional to 104,318.84, 143,962.47 and 63,468.92

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Solution

The fourth proportional to 104,318.84, 143,962.47 and 63,468.92 is: 87,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,318.84 : 143,962.47 = 63,468.92 : x
  2. Step 2: Convert to fraction form
    104,318.84/143,962.47 = 63,468.92/x
  3. Step 3: Cross multiply
    104,318.84x = 143,962.47 × 63,468.92
  4. Step 4: Simplify right side
    104,318.84x = 9,137,141,771.62
  5. Step 5: Solve for x
    x = 9,137,141,771.62/104,318.84
  6. Step 6: Final answer
    x = 87,588.61

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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.