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Finding the Fourth Proportional to 266,970,616.80, 400,455,925.20 and 94,642,015.20

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Solution

The fourth proportional to 266,970,616.80, 400,455,925.20 and 94,642,015.20 is: 141,963,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,970,616.80 : 400,455,925.20 = 94,642,015.20 : x
  2. Step 2: Convert to fraction form
    266,970,616.80/400,455,925.20 = 94,642,015.20/x
  3. Step 3: Cross multiply
    266,970,616.80x = 400,455,925.20 × 94,642,015.20
  4. Step 4: Simplify right side
    266,970,616.80x = 37,899,955,759,708,464
  5. Step 5: Solve for x
    x = 37,899,955,759,708,464/266,970,616.80
  6. Step 6: Final answer
    x = 141,963,022.80

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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.