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Finding the Fourth Proportional to 112,784,612.88, 155,642,765.76 and 63,892,040.88

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Solution

The fourth proportional to 112,784,612.88, 155,642,765.76 and 63,892,040.88 is: 88,171,016.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,784,612.88 : 155,642,765.76 = 63,892,040.88 : x
  2. Step 2: Convert to fraction form
    112,784,612.88/155,642,765.76 = 63,892,040.88/x
  3. Step 3: Cross multiply
    112,784,612.88x = 155,642,765.76 × 63,892,040.88
  4. Step 4: Simplify right side
    112,784,612.88x = 9,944,333,952,614,184
  5. Step 5: Solve for x
    x = 9,944,333,952,614,184/112,784,612.88
  6. Step 6: Final answer
    x = 88,171,016.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.