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Finding the Fourth Proportional to 118,358.64, 177,432.44 and 43,461.59

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Solution

The fourth proportional to 118,358.64, 177,432.44 and 43,461.59 is: 65,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,358.64 : 177,432.44 = 43,461.59 : x
  2. Step 2: Convert to fraction form
    118,358.64/177,432.44 = 43,461.59/x
  3. Step 3: Cross multiply
    118,358.64x = 177,432.44 × 43,461.59
  4. Step 4: Simplify right side
    118,358.64x = 7,711,494,855.51
  5. Step 5: Solve for x
    x = 7,711,494,855.51/118,358.64
  6. Step 6: Final answer
    x = 65,153.63

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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.