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Finding the Fourth Proportional to 281,247,996.86, 421,881,562.87 and 133,619,366.86

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Solution

The fourth proportional to 281,247,996.86, 421,881,562.87 and 133,619,366.86 is: 200,433,595.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,247,996.86 : 421,881,562.87 = 133,619,366.86 : x
  2. Step 2: Convert to fraction form
    281,247,996.86/421,881,562.87 = 133,619,366.86/x
  3. Step 3: Cross multiply
    281,247,996.86x = 421,881,562.87 × 133,619,366.86
  4. Step 4: Simplify right side
    281,247,996.86x = 56,371,547,320,596,688
  5. Step 5: Solve for x
    x = 56,371,547,320,596,688/281,247,996.86
  6. Step 6: Final answer
    x = 200,433,595.79

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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.