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Finding the Fourth Proportional to 243,285.53, 364,994.87 and 117,031.37

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Solution

The fourth proportional to 243,285.53, 364,994.87 and 117,031.37 is: 175,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,285.53 : 364,994.87 = 117,031.37 : x
  2. Step 2: Convert to fraction form
    243,285.53/364,994.87 = 117,031.37/x
  3. Step 3: Cross multiply
    243,285.53x = 364,994.87 × 117,031.37
  4. Step 4: Simplify right side
    243,285.53x = 42,715,847,268.94
  5. Step 5: Solve for x
    x = 42,715,847,268.94/243,285.53
  6. Step 6: Final answer
    x = 175,579.07

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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.