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Finding the Fourth Proportional to 412,483.93, 618,744.35 and 112,957.88

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Solution

The fourth proportional to 412,483.93, 618,744.35 and 112,957.88 is: 169,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,483.93 : 618,744.35 = 112,957.88 : x
  2. Step 2: Convert to fraction form
    412,483.93/618,744.35 = 112,957.88/x
  3. Step 3: Cross multiply
    412,483.93x = 618,744.35 × 112,957.88
  4. Step 4: Simplify right side
    412,483.93x = 69,892,047,226.65
  5. Step 5: Solve for x
    x = 69,892,047,226.65/412,483.93
  6. Step 6: Final answer
    x = 169,441.87

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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.