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Finding the Fourth Proportional to 526,924.56, 790,388.85 and 127,564.68

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Solution

The fourth proportional to 526,924.56, 790,388.85 and 127,564.68 is: 191,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,924.56 : 790,388.85 = 127,564.68 : x
  2. Step 2: Convert to fraction form
    526,924.56/790,388.85 = 127,564.68/x
  3. Step 3: Cross multiply
    526,924.56x = 790,388.85 × 127,564.68
  4. Step 4: Simplify right side
    526,924.56x = 100,825,700,725.82
  5. Step 5: Solve for x
    x = 100,825,700,725.82/526,924.56
  6. Step 6: Final answer
    x = 191,347.51

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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.