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Finding the Fourth Proportional to 330,472.14, 495,708.48 and 90,588.65

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Solution

The fourth proportional to 330,472.14, 495,708.48 and 90,588.65 is: 135,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,472.14 : 495,708.48 = 90,588.65 : x
  2. Step 2: Convert to fraction form
    330,472.14/495,708.48 = 90,588.65/x
  3. Step 3: Cross multiply
    330,472.14x = 495,708.48 × 90,588.65
  4. Step 4: Simplify right side
    330,472.14x = 44,905,559,518.21
  5. Step 5: Solve for x
    x = 44,905,559,518.21/330,472.14
  6. Step 6: Final answer
    x = 135,883.04

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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.