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Finding the Fourth Proportional to 104,078.63, 143,632.01 and 63,784.62

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Solution

The fourth proportional to 104,078.63, 143,632.01 and 63,784.62 is: 88,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.63 : 143,632.01 = 63,784.62 : x
  2. Step 2: Convert to fraction form
    104,078.63/143,632.01 = 63,784.62/x
  3. Step 3: Cross multiply
    104,078.63x = 143,632.01 × 63,784.62
  4. Step 4: Simplify right side
    104,078.63x = 9,161,512,858.76
  5. Step 5: Solve for x
    x = 9,161,512,858.76/104,078.63
  6. Step 6: Final answer
    x = 88,024.92

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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.