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Finding the Fourth Proportional to 104,502.74, 156,955.80 and 89,543.66

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Solution

The fourth proportional to 104,502.74, 156,955.80 and 89,543.66 is: 134,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,502.74 : 156,955.80 = 89,543.66 : x
  2. Step 2: Convert to fraction form
    104,502.74/156,955.80 = 89,543.66/x
  3. Step 3: Cross multiply
    104,502.74x = 156,955.80 × 89,543.66
  4. Step 4: Simplify right side
    104,502.74x = 14,054,396,790.23
  5. Step 5: Solve for x
    x = 14,054,396,790.23/104,502.74
  6. Step 6: Final answer
    x = 134,488.31

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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.