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Finding the Fourth Proportional to 133,328.84, 183,993.90 and 72,898.52

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Solution

The fourth proportional to 133,328.84, 183,993.90 and 72,898.52 is: 100,600.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,328.84 : 183,993.90 = 72,898.52 : x
  2. Step 2: Convert to fraction form
    133,328.84/183,993.90 = 72,898.52/x
  3. Step 3: Cross multiply
    133,328.84x = 183,993.90 × 72,898.52
  4. Step 4: Simplify right side
    133,328.84x = 13,412,882,999.03
  5. Step 5: Solve for x
    x = 13,412,882,999.03/133,328.84
  6. Step 6: Final answer
    x = 100,600.01

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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.