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Finding the Fourth Proportional to 143,529,219.80, 215,293,829.70 and 143,529,219.80

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Solution

The fourth proportional to 143,529,219.80, 215,293,829.70 and 143,529,219.80 is: 215,293,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,529,219.80 : 215,293,829.70 = 143,529,219.80 : x
  2. Step 2: Convert to fraction form
    143,529,219.80/215,293,829.70 = 143,529,219.80/x
  3. Step 3: Cross multiply
    143,529,219.80x = 215,293,829.70 × 143,529,219.80
  4. Step 4: Simplify right side
    143,529,219.80x = 30,900,955,404,595,068
  5. Step 5: Solve for x
    x = 30,900,955,404,595,068/143,529,219.80
  6. Step 6: Final answer
    x = 215,293,829.70

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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.