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Finding the Fourth Proportional to 194,062.42, 291,126.84 and 88,890.40

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Solution

The fourth proportional to 194,062.42, 291,126.84 and 88,890.40 is: 133,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,062.42 : 291,126.84 = 88,890.40 : x
  2. Step 2: Convert to fraction form
    194,062.42/291,126.84 = 88,890.40/x
  3. Step 3: Cross multiply
    194,062.42x = 291,126.84 × 88,890.40
  4. Step 4: Simplify right side
    194,062.42x = 25,878,381,258.34
  5. Step 5: Solve for x
    x = 25,878,381,258.34/194,062.42
  6. Step 6: Final answer
    x = 133,350.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.