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Finding the Fourth Proportional to 382,473,079.80, 573,709,619.70 and 123,714,456.90

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Solution

The fourth proportional to 382,473,079.80, 573,709,619.70 and 123,714,456.90 is: 185,571,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,473,079.80 : 573,709,619.70 = 123,714,456.90 : x
  2. Step 2: Convert to fraction form
    382,473,079.80/573,709,619.70 = 123,714,456.90/x
  3. Step 3: Cross multiply
    382,473,079.80x = 573,709,619.70 × 123,714,456.90
  4. Step 4: Simplify right side
    382,473,079.80x = 70,976,174,019,491,048
  5. Step 5: Solve for x
    x = 70,976,174,019,491,048/382,473,079.80
  6. Step 6: Final answer
    x = 185,571,685.35

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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.