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Finding the Fourth Proportional to 104,606.96, 156,893.90 and 45,426.74

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Solution

The fourth proportional to 104,606.96, 156,893.90 and 45,426.74 is: 68,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.96 : 156,893.90 = 45,426.74 : x
  2. Step 2: Convert to fraction form
    104,606.96/156,893.90 = 45,426.74/x
  3. Step 3: Cross multiply
    104,606.96x = 156,893.90 × 45,426.74
  4. Step 4: Simplify right side
    104,606.96x = 7,127,178,402.89
  5. Step 5: Solve for x
    x = 7,127,178,402.89/104,606.96
  6. Step 6: Final answer
    x = 68,132.93

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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.