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Finding the Fourth Proportional to 243,145.20, 364,458.60 and 93,327.60

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Solution

The fourth proportional to 243,145.20, 364,458.60 and 93,327.60 is: 139,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,145.20 : 364,458.60 = 93,327.60 : x
  2. Step 2: Convert to fraction form
    243,145.20/364,458.60 = 93,327.60/x
  3. Step 3: Cross multiply
    243,145.20x = 364,458.60 × 93,327.60
  4. Step 4: Simplify right side
    243,145.20x = 34,014,046,437.36
  5. Step 5: Solve for x
    x = 34,014,046,437.36/243,145.20
  6. Step 6: Final answer
    x = 139,891.91

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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.