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Finding the Fourth Proportional to 118,586.59, 177,878.91 and 48,416.69

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Solution

The fourth proportional to 118,586.59, 177,878.91 and 48,416.69 is: 72,624.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,586.59 : 177,878.91 = 48,416.69 : x
  2. Step 2: Convert to fraction form
    118,586.59/177,878.91 = 48,416.69/x
  3. Step 3: Cross multiply
    118,586.59x = 177,878.91 × 48,416.69
  4. Step 4: Simplify right side
    118,586.59x = 8,612,308,043.01
  5. Step 5: Solve for x
    x = 8,612,308,043.01/118,586.59
  6. Step 6: Final answer
    x = 72,624.64

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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.