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Finding the Fourth Proportional to 117,007.80, 174,999.70 and 104,617.40

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Solution

The fourth proportional to 117,007.80, 174,999.70 and 104,617.40 is: 156,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.80 : 174,999.70 = 104,617.40 : x
  2. Step 2: Convert to fraction form
    117,007.80/174,999.70 = 104,617.40/x
  3. Step 3: Cross multiply
    117,007.80x = 174,999.70 × 104,617.40
  4. Step 4: Simplify right side
    117,007.80x = 18,308,013,614.78
  5. Step 5: Solve for x
    x = 18,308,013,614.78/117,007.80
  6. Step 6: Final answer
    x = 156,468.32

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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.