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Finding the Fourth Proportional to 117,685.37, 176,526.52 and 28,939.65

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Solution

The fourth proportional to 117,685.37, 176,526.52 and 28,939.65 is: 43,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,685.37 : 176,526.52 = 28,939.65 : x
  2. Step 2: Convert to fraction form
    117,685.37/176,526.52 = 28,939.65/x
  3. Step 3: Cross multiply
    117,685.37x = 176,526.52 × 28,939.65
  4. Step 4: Simplify right side
    117,685.37x = 5,108,615,704.52
  5. Step 5: Solve for x
    x = 5,108,615,704.52/117,685.37
  6. Step 6: Final answer
    x = 43,409.10

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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.