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Finding the Fourth Proportional to 309,912,110.70, 464,868,166.05 and 309,912,110.70

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Solution

The fourth proportional to 309,912,110.70, 464,868,166.05 and 309,912,110.70 is: 464,868,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,912,110.70 : 464,868,166.05 = 309,912,110.70 : x
  2. Step 2: Convert to fraction form
    309,912,110.70/464,868,166.05 = 309,912,110.70/x
  3. Step 3: Cross multiply
    309,912,110.70x = 464,868,166.05 × 309,912,110.70
  4. Step 4: Simplify right side
    309,912,110.70x = 144,068,274,537,793,584
  5. Step 5: Solve for x
    x = 144,068,274,537,793,584/309,912,110.70
  6. Step 6: Final answer
    x = 464,868,166.05

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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.