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Finding the Fourth Proportional to 499,418.15, 749,134.13 and 162,460.55

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Solution

The fourth proportional to 499,418.15, 749,134.13 and 162,460.55 is: 243,693.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,418.15 : 749,134.13 = 162,460.55 : x
  2. Step 2: Convert to fraction form
    499,418.15/749,134.13 = 162,460.55/x
  3. Step 3: Cross multiply
    499,418.15x = 749,134.13 × 162,460.55
  4. Step 4: Simplify right side
    499,418.15x = 121,704,743,844.10
  5. Step 5: Solve for x
    x = 121,704,743,844.10/499,418.15
  6. Step 6: Final answer
    x = 243,693.08

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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.