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Finding the Fourth Proportional to 255,808,212.80, 383,712,319.20 and 179,217,723.20

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Solution

The fourth proportional to 255,808,212.80, 383,712,319.20 and 179,217,723.20 is: 268,826,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,808,212.80 : 383,712,319.20 = 179,217,723.20 : x
  2. Step 2: Convert to fraction form
    255,808,212.80/383,712,319.20 = 179,217,723.20/x
  3. Step 3: Cross multiply
    255,808,212.80x = 383,712,319.20 × 179,217,723.20
  4. Step 4: Simplify right side
    255,808,212.80x = 68,768,048,210,815,640
  5. Step 5: Solve for x
    x = 68,768,048,210,815,640/255,808,212.80
  6. Step 6: Final answer
    x = 268,826,584.80

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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.