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Finding the Fourth Proportional to 201,849.40, 302,730.90 and 89,529.40

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Solution

The fourth proportional to 201,849.40, 302,730.90 and 89,529.40 is: 134,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,849.40 : 302,730.90 = 89,529.40 : x
  2. Step 2: Convert to fraction form
    201,849.40/302,730.90 = 89,529.40/x
  3. Step 3: Cross multiply
    201,849.40x = 302,730.90 × 89,529.40
  4. Step 4: Simplify right side
    201,849.40x = 27,103,315,838.46
  5. Step 5: Solve for x
    x = 27,103,315,838.46/201,849.40
  6. Step 6: Final answer
    x = 134,274.94

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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.