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Finding the Fourth Proportional to 312,367.36, 468,551.04 and 75,710.04

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Solution

The fourth proportional to 312,367.36, 468,551.04 and 75,710.04 is: 113,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,367.36 : 468,551.04 = 75,710.04 : x
  2. Step 2: Convert to fraction form
    312,367.36/468,551.04 = 75,710.04/x
  3. Step 3: Cross multiply
    312,367.36x = 468,551.04 × 75,710.04
  4. Step 4: Simplify right side
    312,367.36x = 35,474,017,980.44
  5. Step 5: Solve for x
    x = 35,474,017,980.44/312,367.36
  6. Step 6: Final answer
    x = 113,565.06

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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.