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Finding the Fourth Proportional to 458,274.88, 687,248.28 and 158,675.05

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Solution

The fourth proportional to 458,274.88, 687,248.28 and 158,675.05 is: 237,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,274.88 : 687,248.28 = 158,675.05 : x
  2. Step 2: Convert to fraction form
    458,274.88/687,248.28 = 158,675.05/x
  3. Step 3: Cross multiply
    458,274.88x = 687,248.28 × 158,675.05
  4. Step 4: Simplify right side
    458,274.88x = 109,049,155,191.41
  5. Step 5: Solve for x
    x = 109,049,155,191.41/458,274.88
  6. Step 6: Final answer
    x = 237,955.78

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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.