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Finding the Fourth Proportional to 191,712.91, 264,532.69 and 111,124.69

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Solution

The fourth proportional to 191,712.91, 264,532.69 and 111,124.69 is: 153,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,712.91 : 264,532.69 = 111,124.69 : x
  2. Step 2: Convert to fraction form
    191,712.91/264,532.69 = 111,124.69/x
  3. Step 3: Cross multiply
    191,712.91x = 264,532.69 × 111,124.69
  4. Step 4: Simplify right side
    191,712.91x = 29,396,111,848.45
  5. Step 5: Solve for x
    x = 29,396,111,848.45/191,712.91
  6. Step 6: Final answer
    x = 153,334.03

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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.