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Finding the Fourth Proportional to 452,840.54, 679,219.16 and 153,286.88

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Solution

The fourth proportional to 452,840.54, 679,219.16 and 153,286.88 is: 229,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,840.54 : 679,219.16 = 153,286.88 : x
  2. Step 2: Convert to fraction form
    452,840.54/679,219.16 = 153,286.88/x
  3. Step 3: Cross multiply
    452,840.54x = 679,219.16 × 153,286.88
  4. Step 4: Simplify right side
    452,840.54x = 104,115,381,710.09
  5. Step 5: Solve for x
    x = 104,115,381,710.09/452,840.54
  6. Step 6: Final answer
    x = 229,916.21

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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.