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Finding the Fourth Proportional to 493,926.23, 740,803.23 and 138,855.85

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Solution

The fourth proportional to 493,926.23, 740,803.23 and 138,855.85 is: 208,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,926.23 : 740,803.23 = 138,855.85 : x
  2. Step 2: Convert to fraction form
    493,926.23/740,803.23 = 138,855.85/x
  3. Step 3: Cross multiply
    493,926.23x = 740,803.23 × 138,855.85
  4. Step 4: Simplify right side
    493,926.23x = 102,864,860,332.39
  5. Step 5: Solve for x
    x = 102,864,860,332.39/493,926.23
  6. Step 6: Final answer
    x = 208,259.56

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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.