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Finding the Fourth Proportional to 181,953.59, 272,524.14 and 139,521.15

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Solution

The fourth proportional to 181,953.59, 272,524.14 and 139,521.15 is: 208,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,953.59 : 272,524.14 = 139,521.15 : x
  2. Step 2: Convert to fraction form
    181,953.59/272,524.14 = 139,521.15/x
  3. Step 3: Cross multiply
    181,953.59x = 272,524.14 × 139,521.15
  4. Step 4: Simplify right side
    181,953.59x = 38,022,881,415.56
  5. Step 5: Solve for x
    x = 38,022,881,415.56/181,953.59
  6. Step 6: Final answer
    x = 208,970.22

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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.