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Finding the Fourth Proportional to 240,904.82, 361,217.13 and 91,156.67

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Solution

The fourth proportional to 240,904.82, 361,217.13 and 91,156.67 is: 136,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,904.82 : 361,217.13 = 91,156.67 : x
  2. Step 2: Convert to fraction form
    240,904.82/361,217.13 = 91,156.67/x
  3. Step 3: Cross multiply
    240,904.82x = 361,217.13 × 91,156.67
  4. Step 4: Simplify right side
    240,904.82x = 32,927,348,911.67
  5. Step 5: Solve for x
    x = 32,927,348,911.67/240,904.82
  6. Step 6: Final answer
    x = 136,681.99

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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.