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Finding the Fourth Proportional to 153,156.66, 211,374.82 and 92,725.80

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Solution

The fourth proportional to 153,156.66, 211,374.82 and 92,725.80 is: 127,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,156.66 : 211,374.82 = 92,725.80 : x
  2. Step 2: Convert to fraction form
    153,156.66/211,374.82 = 92,725.80/x
  3. Step 3: Cross multiply
    153,156.66x = 211,374.82 × 92,725.80
  4. Step 4: Simplify right side
    153,156.66x = 19,599,899,284.36
  5. Step 5: Solve for x
    x = 19,599,899,284.36/153,156.66
  6. Step 6: Final answer
    x = 127,972.88

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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.