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Finding the Fourth Proportional to 189,807.68, 284,615.40 and 63,402.86

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Solution

The fourth proportional to 189,807.68, 284,615.40 and 63,402.86 is: 95,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,807.68 : 284,615.40 = 63,402.86 : x
  2. Step 2: Convert to fraction form
    189,807.68/284,615.40 = 63,402.86/x
  3. Step 3: Cross multiply
    189,807.68x = 284,615.40 × 63,402.86
  4. Step 4: Simplify right side
    189,807.68x = 18,045,430,360.04
  5. Step 5: Solve for x
    x = 18,045,430,360.04/189,807.68
  6. Step 6: Final answer
    x = 95,072.18

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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.