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Finding the Fourth Proportional to 251,279,608.40, 376,639,476.60 and 97,874,680.40

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Solution

The fourth proportional to 251,279,608.40, 376,639,476.60 and 97,874,680.40 is: 146,702,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,279,608.40 : 376,639,476.60 = 97,874,680.40 : x
  2. Step 2: Convert to fraction form
    251,279,608.40/376,639,476.60 = 97,874,680.40/x
  3. Step 3: Cross multiply
    251,279,608.40x = 376,639,476.60 × 97,874,680.40
  4. Step 4: Simplify right side
    251,279,608.40x = 36,863,468,398,248,280
  5. Step 5: Solve for x
    x = 36,863,468,398,248,280/251,279,608.40
  6. Step 6: Final answer
    x = 146,702,984.11

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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.