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Finding the Fourth Proportional to 133,034.76, 183,587.98 and 99,072.40

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Solution

The fourth proportional to 133,034.76, 183,587.98 and 99,072.40 is: 136,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,034.76 : 183,587.98 = 99,072.40 : x
  2. Step 2: Convert to fraction form
    133,034.76/183,587.98 = 99,072.40/x
  3. Step 3: Cross multiply
    133,034.76x = 183,587.98 × 99,072.40
  4. Step 4: Simplify right side
    133,034.76x = 18,188,501,789.75
  5. Step 5: Solve for x
    x = 18,188,501,789.75/133,034.76
  6. Step 6: Final answer
    x = 136,719.92

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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.