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Finding the Fourth Proportional to 224,662,643.40, 336,993,965.10 and 127,580,838.60

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Solution

The fourth proportional to 224,662,643.40, 336,993,965.10 and 127,580,838.60 is: 191,371,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,662,643.40 : 336,993,965.10 = 127,580,838.60 : x
  2. Step 2: Convert to fraction form
    224,662,643.40/336,993,965.10 = 127,580,838.60/x
  3. Step 3: Cross multiply
    224,662,643.40x = 336,993,965.10 × 127,580,838.60
  4. Step 4: Simplify right side
    224,662,643.40x = 42,993,972,670,597,136
  5. Step 5: Solve for x
    x = 42,993,972,670,597,136/224,662,643.40
  6. Step 6: Final answer
    x = 191,371,257.90

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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.