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Finding the Fourth Proportional to 117,005.80, 174,996.70 and 104,615.40

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Solution

The fourth proportional to 117,005.80, 174,996.70 and 104,615.40 is: 156,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.80 : 174,996.70 = 104,615.40 : x
  2. Step 2: Convert to fraction form
    117,005.80/174,996.70 = 104,615.40/x
  3. Step 3: Cross multiply
    117,005.80x = 174,996.70 × 104,615.40
  4. Step 4: Simplify right side
    117,005.80x = 18,307,349,769.18
  5. Step 5: Solve for x
    x = 18,307,349,769.18/117,005.80
  6. Step 6: Final answer
    x = 156,465.32

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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.