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Finding the Fourth Proportional to 153,104.47, 211,295.99 and 91,852.96

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Solution

The fourth proportional to 153,104.47, 211,295.99 and 91,852.96 is: 126,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,104.47 : 211,295.99 = 91,852.96 : x
  2. Step 2: Convert to fraction form
    153,104.47/211,295.99 = 91,852.96/x
  3. Step 3: Cross multiply
    153,104.47x = 211,295.99 × 91,852.96
  4. Step 4: Simplify right side
    153,104.47x = 19,408,161,819.02
  5. Step 5: Solve for x
    x = 19,408,161,819.02/153,104.47
  6. Step 6: Final answer
    x = 126,764.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.