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Finding the Fourth Proportional to 266,224,671.60, 399,305,514.60 and 72,124,047.60

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Solution

The fourth proportional to 266,224,671.60, 399,305,514.60 and 72,124,047.60 is: 108,177,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,224,671.60 : 399,305,514.60 = 72,124,047.60 : x
  2. Step 2: Convert to fraction form
    266,224,671.60/399,305,514.60 = 72,124,047.60/x
  3. Step 3: Cross multiply
    266,224,671.60x = 399,305,514.60 × 72,124,047.60
  4. Step 4: Simplify right side
    266,224,671.60x = 28,799,529,941,952,896
  5. Step 5: Solve for x
    x = 28,799,529,941,952,896/266,224,671.60
  6. Step 6: Final answer
    x = 108,177,539.55

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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.