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Finding the Fourth Proportional to 117,803.72, 176,762.34 and 58,644.60

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Solution

The fourth proportional to 117,803.72, 176,762.34 and 58,644.60 is: 87,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,803.72 : 176,762.34 = 58,644.60 : x
  2. Step 2: Convert to fraction form
    117,803.72/176,762.34 = 58,644.60/x
  3. Step 3: Cross multiply
    117,803.72x = 176,762.34 × 58,644.60
  4. Step 4: Simplify right side
    117,803.72x = 10,366,156,724.36
  5. Step 5: Solve for x
    x = 10,366,156,724.36/117,803.72
  6. Step 6: Final answer
    x = 87,995.16

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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.