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Finding the Fourth Proportional to 104,425.30, 144,107.03 and 56,678.64

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Solution

The fourth proportional to 104,425.30, 144,107.03 and 56,678.64 is: 78,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,425.30 : 144,107.03 = 56,678.64 : x
  2. Step 2: Convert to fraction form
    104,425.30/144,107.03 = 56,678.64/x
  3. Step 3: Cross multiply
    104,425.30x = 144,107.03 × 56,678.64
  4. Step 4: Simplify right side
    104,425.30x = 8,167,790,076.13
  5. Step 5: Solve for x
    x = 8,167,790,076.13/104,425.30
  6. Step 6: Final answer
    x = 78,216.58

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1.5x scale

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.