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Finding the Fourth Proportional to 311,041.60, 466,562.40 and 100,700.80

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Solution

The fourth proportional to 311,041.60, 466,562.40 and 100,700.80 is: 151,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,041.60 : 466,562.40 = 100,700.80 : x
  2. Step 2: Convert to fraction form
    311,041.60/466,562.40 = 100,700.80/x
  3. Step 3: Cross multiply
    311,041.60x = 466,562.40 × 100,700.80
  4. Step 4: Simplify right side
    311,041.60x = 46,983,206,929.92
  5. Step 5: Solve for x
    x = 46,983,206,929.92/311,041.60
  6. Step 6: Final answer
    x = 151,051.20

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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.