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Finding the Fourth Proportional to 105,552,015.20, 158,328,022.80 and 105,552,015.20

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Solution

The fourth proportional to 105,552,015.20, 158,328,022.80 and 105,552,015.20 is: 158,328,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,552,015.20 : 158,328,022.80 = 105,552,015.20 : x
  2. Step 2: Convert to fraction form
    105,552,015.20/158,328,022.80 = 105,552,015.20/x
  3. Step 3: Cross multiply
    105,552,015.20x = 158,328,022.80 × 105,552,015.20
  4. Step 4: Simplify right side
    105,552,015.20x = 16,711,841,869,171,548
  5. Step 5: Solve for x
    x = 16,711,841,869,171,548/105,552,015.20
  6. Step 6: Final answer
    x = 158,328,022.80

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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.