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Finding the Fourth Proportional to 133,915.32, 184,795.56 and 80,188.02

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Solution

The fourth proportional to 133,915.32, 184,795.56 and 80,188.02 is: 110,654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,915.32 : 184,795.56 = 80,188.02 : x
  2. Step 2: Convert to fraction form
    133,915.32/184,795.56 = 80,188.02/x
  3. Step 3: Cross multiply
    133,915.32x = 184,795.56 × 80,188.02
  4. Step 4: Simplify right side
    133,915.32x = 14,818,390,061.19
  5. Step 5: Solve for x
    x = 14,818,390,061.19/133,915.32
  6. Step 6: Final answer
    x = 110,654.93

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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.