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Finding the Fourth Proportional to 104,104.77, 143,664.91 and 56,358.00

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Solution

The fourth proportional to 104,104.77, 143,664.91 and 56,358.00 is: 77,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.77 : 143,664.91 = 56,358.00 : x
  2. Step 2: Convert to fraction form
    104,104.77/143,664.91 = 56,358.00/x
  3. Step 3: Cross multiply
    104,104.77x = 143,664.91 × 56,358.00
  4. Step 4: Simplify right side
    104,104.77x = 8,096,667,342.79
  5. Step 5: Solve for x
    x = 8,096,667,342.79/104,104.77
  6. Step 6: Final answer
    x = 77,774.22

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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.