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Finding the Fourth Proportional to 66,446,927.20, 99,689,053.20 and 32,369,384.80

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Solution

The fourth proportional to 66,446,927.20, 99,689,053.20 and 32,369,384.80 is: 48,563,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446,927.20 : 99,689,053.20 = 32,369,384.80 : x
  2. Step 2: Convert to fraction form
    66,446,927.20/99,689,053.20 = 32,369,384.80/x
  3. Step 3: Cross multiply
    66,446,927.20x = 99,689,053.20 × 32,369,384.80
  4. Step 4: Simplify right side
    66,446,927.20x = 3,226,873,323,378,471.50
  5. Step 5: Solve for x
    x = 3,226,873,323,378,471.50/66,446,927.20
  6. Step 6: Final answer
    x = 48,563,168.52

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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.