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Finding the Fourth Proportional to 166,212,010.20, 249,318,015.30 and 166,212,010.20

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Solution

The fourth proportional to 166,212,010.20, 249,318,015.30 and 166,212,010.20 is: 249,318,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212,010.20 : 249,318,015.30 = 166,212,010.20 : x
  2. Step 2: Convert to fraction form
    166,212,010.20/249,318,015.30 = 166,212,010.20/x
  3. Step 3: Cross multiply
    166,212,010.20x = 249,318,015.30 × 166,212,010.20
  4. Step 4: Simplify right side
    166,212,010.20x = 41,439,648,502,087,352
  5. Step 5: Solve for x
    x = 41,439,648,502,087,352/166,212,010.20
  6. Step 6: Final answer
    x = 249,318,015.30

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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.