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Finding the Fourth Proportional to 69,701,903.20, 104,552,854.80 and 35,611,919.20

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Solution

The fourth proportional to 69,701,903.20, 104,552,854.80 and 35,611,919.20 is: 53,417,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,701,903.20 : 104,552,854.80 = 35,611,919.20 : x
  2. Step 2: Convert to fraction form
    69,701,903.20/104,552,854.80 = 35,611,919.20/x
  3. Step 3: Cross multiply
    69,701,903.20x = 104,552,854.80 × 35,611,919.20
  4. Step 4: Simplify right side
    69,701,903.20x = 3,723,327,817,266,932.50
  5. Step 5: Solve for x
    x = 3,723,327,817,266,932.50/69,701,903.20
  6. Step 6: Final answer
    x = 53,417,878.80

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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.