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Finding the Fourth Proportional to 425,261.14, 637,909.52 and 158,994.70

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Solution

The fourth proportional to 425,261.14, 637,909.52 and 158,994.70 is: 238,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,261.14 : 637,909.52 = 158,994.70 : x
  2. Step 2: Convert to fraction form
    425,261.14/637,909.52 = 158,994.70/x
  3. Step 3: Cross multiply
    425,261.14x = 637,909.52 × 158,994.70
  4. Step 4: Simplify right side
    425,261.14x = 101,424,232,759.54
  5. Step 5: Solve for x
    x = 101,424,232,759.54/425,261.14
  6. Step 6: Final answer
    x = 238,498.71

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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.