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Finding the Fourth Proportional to 51,687,485.60, 77,363,266.80 and 51,687,485.60

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Solution

The fourth proportional to 51,687,485.60, 77,363,266.80 and 51,687,485.60 is: 77,363,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,687,485.60 : 77,363,266.80 = 51,687,485.60 : x
  2. Step 2: Convert to fraction form
    51,687,485.60/77,363,266.80 = 51,687,485.60/x
  3. Step 3: Cross multiply
    51,687,485.60x = 77,363,266.80 × 51,687,485.60
  4. Step 4: Simplify right side
    51,687,485.60x = 3,998,712,738,693,958
  5. Step 5: Solve for x
    x = 3,998,712,738,693,958/51,687,485.60
  6. Step 6: Final answer
    x = 77,363,266.80

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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.