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Finding the Fourth Proportional to 235,256.61, 352,892.59 and 111,991.67

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Solution

The fourth proportional to 235,256.61, 352,892.59 and 111,991.67 is: 167,991.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,256.61 : 352,892.59 = 111,991.67 : x
  2. Step 2: Convert to fraction form
    235,256.61/352,892.59 = 111,991.67/x
  3. Step 3: Cross multiply
    235,256.61x = 352,892.59 × 111,991.67
  4. Step 4: Simplify right side
    235,256.61x = 39,521,028,160.30
  5. Step 5: Solve for x
    x = 39,521,028,160.30/235,256.61
  6. Step 6: Final answer
    x = 167,991.15

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1.5x scale

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.