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Finding the Fourth Proportional to 159,263.78, 238,917.63 and 54,054.50

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Solution

The fourth proportional to 159,263.78, 238,917.63 and 54,054.50 is: 81,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,263.78 : 238,917.63 = 54,054.50 : x
  2. Step 2: Convert to fraction form
    159,263.78/238,917.63 = 54,054.50/x
  3. Step 3: Cross multiply
    159,263.78x = 238,917.63 × 54,054.50
  4. Step 4: Simplify right side
    159,263.78x = 12,914,573,030.84
  5. Step 5: Solve for x
    x = 12,914,573,030.84/159,263.78
  6. Step 6: Final answer
    x = 81,089.20

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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.