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Finding the Fourth Proportional to 232,915.72, 349,376.46 and 66,703.72

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Solution

The fourth proportional to 232,915.72, 349,376.46 and 66,703.72 is: 100,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,915.72 : 349,376.46 = 66,703.72 : x
  2. Step 2: Convert to fraction form
    232,915.72/349,376.46 = 66,703.72/x
  3. Step 3: Cross multiply
    232,915.72x = 349,376.46 × 66,703.72
  4. Step 4: Simplify right side
    232,915.72x = 23,304,709,562.43
  5. Step 5: Solve for x
    x = 23,304,709,562.43/232,915.72
  6. Step 6: Final answer
    x = 100,056.40

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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.