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Finding the Fourth Proportional to 311,903.20, 467,854.80 and 112,448.80

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Solution

The fourth proportional to 311,903.20, 467,854.80 and 112,448.80 is: 168,673.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,903.20 : 467,854.80 = 112,448.80 : x
  2. Step 2: Convert to fraction form
    311,903.20/467,854.80 = 112,448.80/x
  3. Step 3: Cross multiply
    311,903.20x = 467,854.80 × 112,448.80
  4. Step 4: Simplify right side
    311,903.20x = 52,609,710,834.24
  5. Step 5: Solve for x
    x = 52,609,710,834.24/311,903.20
  6. Step 6: Final answer
    x = 168,673.20

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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.