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Finding the Fourth Proportional to 266,970,625.80, 400,455,938.70 and 94,642,024.20

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Solution

The fourth proportional to 266,970,625.80, 400,455,938.70 and 94,642,024.20 is: 141,963,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,970,625.80 : 400,455,938.70 = 94,642,024.20 : x
  2. Step 2: Convert to fraction form
    266,970,625.80/400,455,938.70 = 94,642,024.20/x
  3. Step 3: Cross multiply
    266,970,625.80x = 400,455,938.70 × 94,642,024.20
  4. Step 4: Simplify right side
    266,970,625.80x = 37,899,960,641,479,120
  5. Step 5: Solve for x
    x = 37,899,960,641,479,120/266,970,625.80
  6. Step 6: Final answer
    x = 141,963,036.30

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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.