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Finding the Fourth Proportional to 493,938.24, 740,907.36 and 119,958.72

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Solution

The fourth proportional to 493,938.24, 740,907.36 and 119,958.72 is: 179,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,938.24 : 740,907.36 = 119,958.72 : x
  2. Step 2: Convert to fraction form
    493,938.24/740,907.36 = 119,958.72/x
  3. Step 3: Cross multiply
    493,938.24x = 740,907.36 × 119,958.72
  4. Step 4: Simplify right side
    493,938.24x = 88,878,298,544.18
  5. Step 5: Solve for x
    x = 88,878,298,544.18/493,938.24
  6. Step 6: Final answer
    x = 179,938.08

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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.