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Finding the Fourth Proportional to 104,101.51, 143,660.54 and 56,354.86

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Solution

The fourth proportional to 104,101.51, 143,660.54 and 56,354.86 is: 77,769.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,101.51 : 143,660.54 = 56,354.86 : x
  2. Step 2: Convert to fraction form
    104,101.51/143,660.54 = 56,354.86/x
  3. Step 3: Cross multiply
    104,101.51x = 143,660.54 × 56,354.86
  4. Step 4: Simplify right side
    104,101.51x = 8,095,969,400.96
  5. Step 5: Solve for x
    x = 8,095,969,400.96/104,101.51
  6. Step 6: Final answer
    x = 77,769.95

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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.