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Finding the Fourth Proportional to 191,562.21, 287,164.67 and 65,116.04

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Solution

The fourth proportional to 191,562.21, 287,164.67 and 65,116.04 is: 97,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,562.21 : 287,164.67 = 65,116.04 : x
  2. Step 2: Convert to fraction form
    191,562.21/287,164.67 = 65,116.04/x
  3. Step 3: Cross multiply
    191,562.21x = 287,164.67 × 65,116.04
  4. Step 4: Simplify right side
    191,562.21x = 18,699,025,583.19
  5. Step 5: Solve for x
    x = 18,699,025,583.19/191,562.21
  6. Step 6: Final answer
    x = 97,613.33

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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.