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Finding the Fourth Proportional to 557,056.80, 835,620.72 and 157,729.02

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Solution

The fourth proportional to 557,056.80, 835,620.72 and 157,729.02 is: 236,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,056.80 : 835,620.72 = 157,729.02 : x
  2. Step 2: Convert to fraction form
    557,056.80/835,620.72 = 157,729.02/x
  3. Step 3: Cross multiply
    557,056.80x = 835,620.72 × 157,729.02
  4. Step 4: Simplify right side
    557,056.80x = 131,801,637,257.29
  5. Step 5: Solve for x
    x = 131,801,637,257.29/557,056.80
  6. Step 6: Final answer
    x = 236,603.59

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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.