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Finding the Fourth Proportional to 57,200,412.30, 85,800,618.45 and 57,200,412.30

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Solution

The fourth proportional to 57,200,412.30, 85,800,618.45 and 57,200,412.30 is: 85,800,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,200,412.30 : 85,800,618.45 = 57,200,412.30 : x
  2. Step 2: Convert to fraction form
    57,200,412.30/85,800,618.45 = 57,200,412.30/x
  3. Step 3: Cross multiply
    57,200,412.30x = 85,800,618.45 × 57,200,412.30
  4. Step 4: Simplify right side
    57,200,412.30x = 4,907,830,750,934,987
  5. Step 5: Solve for x
    x = 4,907,830,750,934,987/57,200,412.30
  6. Step 6: Final answer
    x = 85,800,618.45

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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.