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Finding the Fourth Proportional to 118,239.50, 163,173.96 and 64,527.96

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Solution

The fourth proportional to 118,239.50, 163,173.96 and 64,527.96 is: 89,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.50 : 163,173.96 = 64,527.96 : x
  2. Step 2: Convert to fraction form
    118,239.50/163,173.96 = 64,527.96/x
  3. Step 3: Cross multiply
    118,239.50x = 163,173.96 × 64,527.96
  4. Step 4: Simplify right side
    118,239.50x = 10,529,282,763.92
  5. Step 5: Solve for x
    x = 10,529,282,763.92/118,239.50
  6. Step 6: Final answer
    x = 89,050.47

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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.