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Finding the Fourth Proportional to 133,021.41, 183,573.41 and 72,595.94

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Solution

The fourth proportional to 133,021.41, 183,573.41 and 72,595.94 is: 100,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,021.41 : 183,573.41 = 72,595.94 : x
  2. Step 2: Convert to fraction form
    133,021.41/183,573.41 = 72,595.94/x
  3. Step 3: Cross multiply
    133,021.41x = 183,573.41 × 72,595.94
  4. Step 4: Simplify right side
    133,021.41x = 13,326,684,934.36
  5. Step 5: Solve for x
    x = 13,326,684,934.36/133,021.41
  6. Step 6: Final answer
    x = 100,184.51

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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.