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Finding the Fourth Proportional to 529,157.78, 793,725.18 and 129,800.51

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Solution

The fourth proportional to 529,157.78, 793,725.18 and 129,800.51 is: 194,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,157.78 : 793,725.18 = 129,800.51 : x
  2. Step 2: Convert to fraction form
    529,157.78/793,725.18 = 129,800.51/x
  3. Step 3: Cross multiply
    529,157.78x = 793,725.18 × 129,800.51
  4. Step 4: Simplify right side
    529,157.78x = 103,025,933,163.84
  5. Step 5: Solve for x
    x = 103,025,933,163.84/529,157.78
  6. Step 6: Final answer
    x = 194,697.95

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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.