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Finding the Fourth Proportional to 104,859.36, 157,288.68 and 42,529.68

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Solution

The fourth proportional to 104,859.36, 157,288.68 and 42,529.68 is: 63,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,859.36 : 157,288.68 = 42,529.68 : x
  2. Step 2: Convert to fraction form
    104,859.36/157,288.68 = 42,529.68/x
  3. Step 3: Cross multiply
    104,859.36x = 157,288.68 × 42,529.68
  4. Step 4: Simplify right side
    104,859.36x = 6,689,437,228.02
  5. Step 5: Solve for x
    x = 6,689,437,228.02/104,859.36
  6. Step 6: Final answer
    x = 63,794.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.