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Finding the Fourth Proportional to 162,844,987.20, 244,267,480.80 and 55,139,611.20

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Solution

The fourth proportional to 162,844,987.20, 244,267,480.80 and 55,139,611.20 is: 82,709,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,844,987.20 : 244,267,480.80 = 55,139,611.20 : x
  2. Step 2: Convert to fraction form
    162,844,987.20/244,267,480.80 = 55,139,611.20/x
  3. Step 3: Cross multiply
    162,844,987.20x = 244,267,480.80 × 55,139,611.20
  4. Step 4: Simplify right side
    162,844,987.20x = 13,468,813,920,115,466
  5. Step 5: Solve for x
    x = 13,468,813,920,115,466/162,844,987.20
  6. Step 6: Final answer
    x = 82,709,416.80

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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.