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Finding the Fourth Proportional to 224,662,994.40, 336,994,491.60 and 127,581,189.60

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Solution

The fourth proportional to 224,662,994.40, 336,994,491.60 and 127,581,189.60 is: 191,371,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,662,994.40 : 336,994,491.60 = 127,581,189.60 : x
  2. Step 2: Convert to fraction form
    224,662,994.40/336,994,491.60 = 127,581,189.60/x
  3. Step 3: Cross multiply
    224,662,994.40x = 336,994,491.60 × 127,581,189.60
  4. Step 4: Simplify right side
    224,662,994.40x = 42,994,158,126,975,208
  5. Step 5: Solve for x
    x = 42,994,158,126,975,208/224,662,994.40
  6. Step 6: Final answer
    x = 191,371,784.40

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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.