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Finding the Fourth Proportional to 52,804,630.40, 79,220,942.40 and 18,722,422.40

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Solution

The fourth proportional to 52,804,630.40, 79,220,942.40 and 18,722,422.40 is: 28,088,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,804,630.40 : 79,220,942.40 = 18,722,422.40 : x
  2. Step 2: Convert to fraction form
    52,804,630.40/79,220,942.40 = 18,722,422.40/x
  3. Step 3: Cross multiply
    52,804,630.40x = 79,220,942.40 × 18,722,422.40
  4. Step 4: Simplify right side
    52,804,630.40x = 1,483,207,946,538,869.75
  5. Step 5: Solve for x
    x = 1,483,207,946,538,869.75/52,804,630.40
  6. Step 6: Final answer
    x = 28,088,596.31

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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.