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Finding the Fourth Proportional to 389,424.04, 583,859.96 and 173,164.56

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Solution

The fourth proportional to 389,424.04, 583,859.96 and 173,164.56 is: 259,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,424.04 : 583,859.96 = 173,164.56 : x
  2. Step 2: Convert to fraction form
    389,424.04/583,859.96 = 173,164.56/x
  3. Step 3: Cross multiply
    389,424.04x = 583,859.96 × 173,164.56
  4. Step 4: Simplify right side
    389,424.04x = 101,103,853,075.02
  5. Step 5: Solve for x
    x = 101,103,853,075.02/389,424.04
  6. Step 6: Final answer
    x = 259,624.07

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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.