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Finding the Fourth Proportional to 191,866.32, 264,699.90 and 111,279.42

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Solution

The fourth proportional to 191,866.32, 264,699.90 and 111,279.42 is: 153,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,866.32 : 264,699.90 = 111,279.42 : x
  2. Step 2: Convert to fraction form
    191,866.32/264,699.90 = 111,279.42/x
  3. Step 3: Cross multiply
    191,866.32x = 264,699.90 × 111,279.42
  4. Step 4: Simplify right side
    191,866.32x = 29,455,651,346.06
  5. Step 5: Solve for x
    x = 29,455,651,346.06/191,866.32
  6. Step 6: Final answer
    x = 153,521.74

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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.