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Finding the Fourth Proportional to 105,984,221.80, 158,976,332.70 and 105,984,221.80

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Solution

The fourth proportional to 105,984,221.80, 158,976,332.70 and 105,984,221.80 is: 158,976,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,984,221.80 : 158,976,332.70 = 105,984,221.80 : x
  2. Step 2: Convert to fraction form
    105,984,221.80/158,976,332.70 = 105,984,221.80/x
  3. Step 3: Cross multiply
    105,984,221.80x = 158,976,332.70 × 105,984,221.80
  4. Step 4: Simplify right side
    105,984,221.80x = 16,848,982,905,827,392
  5. Step 5: Solve for x
    x = 16,848,982,905,827,392/105,984,221.80
  6. Step 6: Final answer
    x = 158,976,332.70

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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.