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Finding the Fourth Proportional to 312,223.68, 468,333.36 and 75,567.60

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Solution

The fourth proportional to 312,223.68, 468,333.36 and 75,567.60 is: 113,350.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,223.68 : 468,333.36 = 75,567.60 : x
  2. Step 2: Convert to fraction form
    312,223.68/468,333.36 = 75,567.60/x
  3. Step 3: Cross multiply
    312,223.68x = 468,333.36 × 75,567.60
  4. Step 4: Simplify right side
    312,223.68x = 35,390,828,015.14
  5. Step 5: Solve for x
    x = 35,390,828,015.14/312,223.68
  6. Step 6: Final answer
    x = 113,350.88

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1.5x scale

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.