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Finding the Fourth Proportional to 104,506.74, 156,961.80 and 89,547.66

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Solution

The fourth proportional to 104,506.74, 156,961.80 and 89,547.66 is: 134,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,506.74 : 156,961.80 = 89,547.66 : x
  2. Step 2: Convert to fraction form
    104,506.74/156,961.80 = 89,547.66/x
  3. Step 3: Cross multiply
    104,506.74x = 156,961.80 × 89,547.66
  4. Step 4: Simplify right side
    104,506.74x = 14,055,561,899.39
  5. Step 5: Solve for x
    x = 14,055,561,899.39/104,506.74
  6. Step 6: Final answer
    x = 134,494.31

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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.