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Finding the Fourth Proportional to 118,420.70, 177,544.65 and 48,263.90

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Solution

The fourth proportional to 118,420.70, 177,544.65 and 48,263.90 is: 72,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,420.70 : 177,544.65 = 48,263.90 : x
  2. Step 2: Convert to fraction form
    118,420.70/177,544.65 = 48,263.90/x
  3. Step 3: Cross multiply
    118,420.70x = 177,544.65 × 48,263.90
  4. Step 4: Simplify right side
    118,420.70x = 8,568,997,233.14
  5. Step 5: Solve for x
    x = 8,568,997,233.14/118,420.70
  6. Step 6: Final answer
    x = 72,360.64

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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.