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Finding the Fourth Proportional to 236,762.50, 326,726.87 and 129,333.01

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Solution

The fourth proportional to 236,762.50, 326,726.87 and 129,333.01 is: 178,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,762.50 : 326,726.87 = 129,333.01 : x
  2. Step 2: Convert to fraction form
    236,762.50/326,726.87 = 129,333.01/x
  3. Step 3: Cross multiply
    236,762.50x = 326,726.87 × 129,333.01
  4. Step 4: Simplify right side
    236,762.50x = 42,256,569,051.49
  5. Step 5: Solve for x
    x = 42,256,569,051.49/236,762.50
  6. Step 6: Final answer
    x = 178,476.61

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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.