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Finding the Fourth Proportional to 133,097.06, 183,669.12 and 72,666.59

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Solution

The fourth proportional to 133,097.06, 183,669.12 and 72,666.59 is: 100,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.06 : 183,669.12 = 72,666.59 : x
  2. Step 2: Convert to fraction form
    133,097.06/183,669.12 = 72,666.59/x
  3. Step 3: Cross multiply
    133,097.06x = 183,669.12 × 72,666.59
  4. Step 4: Simplify right side
    133,097.06x = 13,346,608,638.70
  5. Step 5: Solve for x
    x = 13,346,608,638.70/133,097.06
  6. Step 6: Final answer
    x = 100,277.26

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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.