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Finding the Fourth Proportional to 242,622.40, 363,933.60 and 84,834.40

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Solution

The fourth proportional to 242,622.40, 363,933.60 and 84,834.40 is: 127,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,622.40 : 363,933.60 = 84,834.40 : x
  2. Step 2: Convert to fraction form
    242,622.40/363,933.60 = 84,834.40/x
  3. Step 3: Cross multiply
    242,622.40x = 363,933.60 × 84,834.40
  4. Step 4: Simplify right side
    242,622.40x = 30,874,088,595.84
  5. Step 5: Solve for x
    x = 30,874,088,595.84/242,622.40
  6. Step 6: Final answer
    x = 127,251.60

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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.