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Finding the Fourth Proportional to 67,182,425.60, 100,783,468.80 and 21,736,486.40

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Solution

The fourth proportional to 67,182,425.60, 100,783,468.80 and 21,736,486.40 is: 32,607,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,182,425.60 : 100,783,468.80 = 21,736,486.40 : x
  2. Step 2: Convert to fraction form
    67,182,425.60/100,783,468.80 = 21,736,486.40/x
  3. Step 3: Cross multiply
    67,182,425.60x = 100,783,468.80 × 21,736,486.40
  4. Step 4: Simplify right side
    67,182,425.60x = 2,190,678,498,916,024
  5. Step 5: Solve for x
    x = 2,190,678,498,916,024/67,182,425.60
  6. Step 6: Final answer
    x = 32,607,910.17

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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.