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Finding the Fourth Proportional to 53,281,472.70, 74,669,644.50 and 53,281,472.70

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Solution

The fourth proportional to 53,281,472.70, 74,669,644.50 and 53,281,472.70 is: 74,669,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281,472.70 : 74,669,644.50 = 53,281,472.70 : x
  2. Step 2: Convert to fraction form
    53,281,472.70/74,669,644.50 = 53,281,472.70/x
  3. Step 3: Cross multiply
    53,281,472.70x = 74,669,644.50 × 53,281,472.70
  4. Step 4: Simplify right side
    53,281,472.70x = 3,978,508,624,945,455.50
  5. Step 5: Solve for x
    x = 3,978,508,624,945,455.50/53,281,472.70
  6. Step 6: Final answer
    x = 74,669,644.50

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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.