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Finding the Fourth Proportional to 5,869,129.20, 8,231,710.80 and 5,869,129.20

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Solution

The fourth proportional to 5,869,129.20, 8,231,710.80 and 5,869,129.20 is: 8,231,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869,129.20 : 8,231,710.80 = 5,869,129.20 : x
  2. Step 2: Convert to fraction form
    5,869,129.20/8,231,710.80 = 5,869,129.20/x
  3. Step 3: Cross multiply
    5,869,129.20x = 8,231,710.80 × 5,869,129.20
  4. Step 4: Simplify right side
    5,869,129.20x = 48,312,974,222,235.36
  5. Step 5: Solve for x
    x = 48,312,974,222,235.36/5,869,129.20
  6. Step 6: Final answer
    x = 8,231,710.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.