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Finding the Fourth Proportional to 451,915.79, 677,877.56 and 114,956.76

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Solution

The fourth proportional to 451,915.79, 677,877.56 and 114,956.76 is: 172,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,915.79 : 677,877.56 = 114,956.76 : x
  2. Step 2: Convert to fraction form
    451,915.79/677,877.56 = 114,956.76/x
  3. Step 3: Cross multiply
    451,915.79x = 677,877.56 × 114,956.76
  4. Step 4: Simplify right side
    451,915.79x = 77,926,607,399.52
  5. Step 5: Solve for x
    x = 77,926,607,399.52/451,915.79
  6. Step 6: Final answer
    x = 172,436.13

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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.