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Finding the Fourth Proportional to 118,149.30, 177,038.19 and 73,709.46

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Solution

The fourth proportional to 118,149.30, 177,038.19 and 73,709.46 is: 110,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,149.30 : 177,038.19 = 73,709.46 : x
  2. Step 2: Convert to fraction form
    118,149.30/177,038.19 = 73,709.46/x
  3. Step 3: Cross multiply
    118,149.30x = 177,038.19 × 73,709.46
  4. Step 4: Simplify right side
    118,149.30x = 13,049,389,384.28
  5. Step 5: Solve for x
    x = 13,049,389,384.28/118,149.30
  6. Step 6: Final answer
    x = 110,448.30

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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.