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Finding the Fourth Proportional to 104,507.74, 156,963.30 and 89,548.66

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Solution

The fourth proportional to 104,507.74, 156,963.30 and 89,548.66 is: 134,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,507.74 : 156,963.30 = 89,548.66 : x
  2. Step 2: Convert to fraction form
    104,507.74/156,963.30 = 89,548.66/x
  3. Step 3: Cross multiply
    104,507.74x = 156,963.30 × 89,548.66
  4. Step 4: Simplify right side
    104,507.74x = 14,055,853,184.18
  5. Step 5: Solve for x
    x = 14,055,853,184.18/104,507.74
  6. Step 6: Final answer
    x = 134,495.81

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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.