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Finding the Fourth Proportional to 191,907.05, 264,746.12 and 111,287.85

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Solution

The fourth proportional to 191,907.05, 264,746.12 and 111,287.85 is: 153,527.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,907.05 : 264,746.12 = 111,287.85 : x
  2. Step 2: Convert to fraction form
    191,907.05/264,746.12 = 111,287.85/x
  3. Step 3: Cross multiply
    191,907.05x = 264,746.12 × 111,287.85
  4. Step 4: Simplify right side
    191,907.05x = 29,463,026,312.00
  5. Step 5: Solve for x
    x = 29,463,026,312.00/191,907.05
  6. Step 6: Final answer
    x = 153,527.59

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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.