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Finding the Fourth Proportional to 189,610.32, 284,414.48 and 49,368.72

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Solution

The fourth proportional to 189,610.32, 284,414.48 and 49,368.72 is: 74,052.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,610.32 : 284,414.48 = 49,368.72 : x
  2. Step 2: Convert to fraction form
    189,610.32/284,414.48 = 49,368.72/x
  3. Step 3: Cross multiply
    189,610.32x = 284,414.48 × 49,368.72
  4. Step 4: Simplify right side
    189,610.32x = 14,041,178,827.07
  5. Step 5: Solve for x
    x = 14,041,178,827.07/189,610.32
  6. Step 6: Final answer
    x = 74,052.82

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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.