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Finding the Fourth Proportional to 201,387.87, 277,916.13 and 110,749.68

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Solution

The fourth proportional to 201,387.87, 277,916.13 and 110,749.68 is: 152,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,387.87 : 277,916.13 = 110,749.68 : x
  2. Step 2: Convert to fraction form
    201,387.87/277,916.13 = 110,749.68/x
  3. Step 3: Cross multiply
    201,387.87x = 277,916.13 × 110,749.68
  4. Step 4: Simplify right side
    201,387.87x = 30,779,122,464.34
  5. Step 5: Solve for x
    x = 30,779,122,464.34/201,387.87
  6. Step 6: Final answer
    x = 152,835.04

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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.