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Finding the Fourth Proportional to 173,989.78, 260,798.10 and 113,995.60

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Solution

The fourth proportional to 173,989.78, 260,798.10 and 113,995.60 is: 170,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,989.78 : 260,798.10 = 113,995.60 : x
  2. Step 2: Convert to fraction form
    173,989.78/260,798.10 = 113,995.60/x
  3. Step 3: Cross multiply
    173,989.78x = 260,798.10 × 113,995.60
  4. Step 4: Simplify right side
    173,989.78x = 29,729,836,428.10
  5. Step 5: Solve for x
    x = 29,729,836,428.10/173,989.78
  6. Step 6: Final answer
    x = 170,871.16

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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.