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Finding the Fourth Proportional to 191,710.87, 264,529.87 and 111,122.64

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Solution

The fourth proportional to 191,710.87, 264,529.87 and 111,122.64 is: 153,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,710.87 : 264,529.87 = 111,122.64 : x
  2. Step 2: Convert to fraction form
    191,710.87/264,529.87 = 111,122.64/x
  3. Step 3: Cross multiply
    191,710.87x = 264,529.87 × 111,122.64
  4. Step 4: Simplify right side
    191,710.87x = 29,395,257,235.45
  5. Step 5: Solve for x
    x = 29,395,257,235.45/191,710.87
  6. Step 6: Final answer
    x = 153,331.20

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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.