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Finding the Fourth Proportional to 133,054.50, 183,615.46 and 73,438.50

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Solution

The fourth proportional to 133,054.50, 183,615.46 and 73,438.50 is: 101,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,054.50 : 183,615.46 = 73,438.50 : x
  2. Step 2: Convert to fraction form
    133,054.50/183,615.46 = 73,438.50/x
  3. Step 3: Cross multiply
    133,054.50x = 183,615.46 × 73,438.50
  4. Step 4: Simplify right side
    133,054.50x = 13,484,443,959.21
  5. Step 5: Solve for x
    x = 13,484,443,959.21/133,054.50
  6. Step 6: Final answer
    x = 101,345.27

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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.