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Finding the Fourth Proportional to 216,019,500.86, 323,898,034.88 and 84,704,458.64

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Solution

The fourth proportional to 216,019,500.86, 323,898,034.88 and 84,704,458.64 is: 127,005,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,019,500.86 : 323,898,034.88 = 84,704,458.64 : x
  2. Step 2: Convert to fraction form
    216,019,500.86/323,898,034.88 = 84,704,458.64/x
  3. Step 3: Cross multiply
    216,019,500.86x = 323,898,034.88 × 84,704,458.64
  4. Step 4: Simplify right side
    216,019,500.86x = 27,435,607,697,662,508
  5. Step 5: Solve for x
    x = 27,435,607,697,662,508/216,019,500.86
  6. Step 6: Final answer
    x = 127,005,236.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.