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Finding the Fourth Proportional to 502,208.36, 753,313.80 and 123,130.80

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Solution

The fourth proportional to 502,208.36, 753,313.80 and 123,130.80 is: 184,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,208.36 : 753,313.80 = 123,130.80 : x
  2. Step 2: Convert to fraction form
    502,208.36/753,313.80 = 123,130.80/x
  3. Step 3: Cross multiply
    502,208.36x = 753,313.80 × 123,130.80
  4. Step 4: Simplify right side
    502,208.36x = 92,756,130,845.04
  5. Step 5: Solve for x
    x = 92,756,130,845.04/502,208.36
  6. Step 6: Final answer
    x = 184,696.51

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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.