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Finding the Fourth Proportional to 173,739.50, 260,609.79 and 42,411.50

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Solution

The fourth proportional to 173,739.50, 260,609.79 and 42,411.50 is: 63,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,739.50 : 260,609.79 = 42,411.50 : x
  2. Step 2: Convert to fraction form
    173,739.50/260,609.79 = 42,411.50/x
  3. Step 3: Cross multiply
    173,739.50x = 260,609.79 × 42,411.50
  4. Step 4: Simplify right side
    173,739.50x = 11,052,852,108.59
  5. Step 5: Solve for x
    x = 11,052,852,108.59/173,739.50
  6. Step 6: Final answer
    x = 63,617.38

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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.