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Finding the Fourth Proportional to 51,009,970.73, 76,514,956.09 and 51,009,970.73

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Solution

The fourth proportional to 51,009,970.73, 76,514,956.09 and 51,009,970.73 is: 76,514,956.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009,970.73 : 76,514,956.09 = 51,009,970.73 : x
  2. Step 2: Convert to fraction form
    51,009,970.73/76,514,956.09 = 51,009,970.73/x
  3. Step 3: Cross multiply
    51,009,970.73x = 76,514,956.09 × 51,009,970.73
  4. Step 4: Simplify right side
    51,009,970.73x = 3,903,025,670,558,135
  5. Step 5: Solve for x
    x = 3,903,025,670,558,135/51,009,970.73
  6. Step 6: Final answer
    x = 76,514,956.09

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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.