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Finding the Fourth Proportional to 75,393.06, 113,054.76 and 69,483.30

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Solution

The fourth proportional to 75,393.06, 113,054.76 and 69,483.30 is: 104,192.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,393.06 : 113,054.76 = 69,483.30 : x
  2. Step 2: Convert to fraction form
    75,393.06/113,054.76 = 69,483.30/x
  3. Step 3: Cross multiply
    75,393.06x = 113,054.76 × 69,483.30
  4. Step 4: Simplify right side
    75,393.06x = 7,855,417,805.51
  5. Step 5: Solve for x
    x = 7,855,417,805.51/75,393.06
  6. Step 6: Final answer
    x = 104,192.85

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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.