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Finding the Fourth Proportional to 191,508.48, 287,166.60 and 111,572.28

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Solution

The fourth proportional to 191,508.48, 287,166.60 and 111,572.28 is: 167,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,508.48 : 287,166.60 = 111,572.28 : x
  2. Step 2: Convert to fraction form
    191,508.48/287,166.60 = 111,572.28/x
  3. Step 3: Cross multiply
    191,508.48x = 287,166.60 × 111,572.28
  4. Step 4: Simplify right side
    191,508.48x = 32,039,832,301.85
  5. Step 5: Solve for x
    x = 32,039,832,301.85/191,508.48
  6. Step 6: Final answer
    x = 167,302.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.