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Finding the Fourth Proportional to 118,391.93, 177,477.18 and 43,491.96

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Solution

The fourth proportional to 118,391.93, 177,477.18 and 43,491.96 is: 65,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,391.93 : 177,477.18 = 43,491.96 : x
  2. Step 2: Convert to fraction form
    118,391.93/177,477.18 = 43,491.96/x
  3. Step 3: Cross multiply
    118,391.93x = 177,477.18 × 43,491.96
  4. Step 4: Simplify right side
    118,391.93x = 7,718,830,639.71
  5. Step 5: Solve for x
    x = 7,718,830,639.71/118,391.93
  6. Step 6: Final answer
    x = 65,197.27

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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.