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Finding the Fourth Proportional to 246,426, 340,068 and 133,248.72

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Solution

The fourth proportional to 246,426, 340,068 and 133,248.72 is: 183,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,426 : 340,068 = 133,248.72 : x
  2. Step 2: Convert to fraction form
    246,426/340,068 = 133,248.72/x
  3. Step 3: Cross multiply
    246,426x = 340,068 × 133,248.72
  4. Step 4: Simplify right side
    246,426x = 45,313,625,712.96
  5. Step 5: Solve for x
    x = 45,313,625,712.96/246,426
  6. Step 6: Final answer
    x = 183,883.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.