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Finding the Fourth Proportional to 153,461.31, 211,787.25 and 93,034.50

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Solution

The fourth proportional to 153,461.31, 211,787.25 and 93,034.50 is: 128,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,461.31 : 211,787.25 = 93,034.50 : x
  2. Step 2: Convert to fraction form
    153,461.31/211,787.25 = 93,034.50/x
  3. Step 3: Cross multiply
    153,461.31x = 211,787.25 × 93,034.50
  4. Step 4: Simplify right side
    153,461.31x = 19,703,520,910.13
  5. Step 5: Solve for x
    x = 19,703,520,910.13/153,461.31
  6. Step 6: Final answer
    x = 128,394.06

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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.