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Finding the Fourth Proportional to 191,571.52, 264,368.60 and 111,045.72

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Solution

The fourth proportional to 191,571.52, 264,368.60 and 111,045.72 is: 153,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,571.52 : 264,368.60 = 111,045.72 : x
  2. Step 2: Convert to fraction form
    191,571.52/264,368.60 = 111,045.72/x
  3. Step 3: Cross multiply
    191,571.52x = 264,368.60 × 111,045.72
  4. Step 4: Simplify right side
    191,571.52x = 29,357,001,532.39
  5. Step 5: Solve for x
    x = 29,357,001,532.39/191,571.52
  6. Step 6: Final answer
    x = 153,243.04

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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.