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Finding the Fourth Proportional to 191,609.53, 264,421.21 and 111,083.74

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Solution

The fourth proportional to 191,609.53, 264,421.21 and 111,083.74 is: 153,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,609.53 : 264,421.21 = 111,083.74 : x
  2. Step 2: Convert to fraction form
    191,609.53/264,421.21 = 111,083.74/x
  3. Step 3: Cross multiply
    191,609.53x = 264,421.21 × 111,083.74
  4. Step 4: Simplify right side
    191,609.53x = 29,372,896,942.13
  5. Step 5: Solve for x
    x = 29,372,896,942.13/191,609.53
  6. Step 6: Final answer
    x = 153,295.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.