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Finding the Fourth Proportional to 282,363.68, 423,562.08 and 79,942.88

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Solution

The fourth proportional to 282,363.68, 423,562.08 and 79,942.88 is: 119,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,363.68 : 423,562.08 = 79,942.88 : x
  2. Step 2: Convert to fraction form
    282,363.68/423,562.08 = 79,942.88/x
  3. Step 3: Cross multiply
    282,363.68x = 423,562.08 × 79,942.88
  4. Step 4: Simplify right side
    282,363.68x = 33,860,772,533.99
  5. Step 5: Solve for x
    x = 33,860,772,533.99/282,363.68
  6. Step 6: Final answer
    x = 119,919.01

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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.