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Finding the Fourth Proportional to 181,453.01, 250,411.54 and 99,787.47

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Solution

The fourth proportional to 181,453.01, 250,411.54 and 99,787.47 is: 137,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,453.01 : 250,411.54 = 99,787.47 : x
  2. Step 2: Convert to fraction form
    181,453.01/250,411.54 = 99,787.47/x
  3. Step 3: Cross multiply
    181,453.01x = 250,411.54 × 99,787.47
  4. Step 4: Simplify right side
    181,453.01x = 24,987,933,597.95
  5. Step 5: Solve for x
    x = 24,987,933,597.95/181,453.01
  6. Step 6: Final answer
    x = 137,710.22

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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.