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Finding the Fourth Proportional to 201,471.30, 302,425.65 and 157,293.90

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Solution

The fourth proportional to 201,471.30, 302,425.65 and 157,293.90 is: 236,111.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,471.30 : 302,425.65 = 157,293.90 : x
  2. Step 2: Convert to fraction form
    201,471.30/302,425.65 = 157,293.90/x
  3. Step 3: Cross multiply
    201,471.30x = 302,425.65 × 157,293.90
  4. Step 4: Simplify right side
    201,471.30x = 47,569,709,948.54
  5. Step 5: Solve for x
    x = 47,569,709,948.54/201,471.30
  6. Step 6: Final answer
    x = 236,111.59

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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.