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Finding the Fourth Proportional to 28,073,136.60, 42,109,704.90 and 28,073,136.60

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Solution

The fourth proportional to 28,073,136.60, 42,109,704.90 and 28,073,136.60 is: 42,109,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073,136.60 : 42,109,704.90 = 28,073,136.60 : x
  2. Step 2: Convert to fraction form
    28,073,136.60/42,109,704.90 = 28,073,136.60/x
  3. Step 3: Cross multiply
    28,073,136.60x = 42,109,704.90 × 28,073,136.60
  4. Step 4: Simplify right side
    28,073,136.60x = 1,182,151,497,843,389.25
  5. Step 5: Solve for x
    x = 1,182,151,497,843,389.25/28,073,136.60
  6. Step 6: Final answer
    x = 42,109,704.90

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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.