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Finding the Fourth Proportional to 556,699.12, 835,103.34 and 157,342.96

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Solution

The fourth proportional to 556,699.12, 835,103.34 and 157,342.96 is: 236,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,699.12 : 835,103.34 = 157,342.96 : x
  2. Step 2: Convert to fraction form
    556,699.12/835,103.34 = 157,342.96/x
  3. Step 3: Cross multiply
    556,699.12x = 835,103.34 × 157,342.96
  4. Step 4: Simplify right side
    556,699.12x = 131,397,631,421.49
  5. Step 5: Solve for x
    x = 131,397,631,421.49/556,699.12
  6. Step 6: Final answer
    x = 236,029.89

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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.