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Finding the Fourth Proportional to 366,931.70, 550,370.20 and 153,644.53

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Solution

The fourth proportional to 366,931.70, 550,370.20 and 153,644.53 is: 230,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,931.70 : 550,370.20 = 153,644.53 : x
  2. Step 2: Convert to fraction form
    366,931.70/550,370.20 = 153,644.53/x
  3. Step 3: Cross multiply
    366,931.70x = 550,370.20 × 153,644.53
  4. Step 4: Simplify right side
    366,931.70x = 84,561,370,705.01
  5. Step 5: Solve for x
    x = 84,561,370,705.01/366,931.70
  6. Step 6: Final answer
    x = 230,455.34

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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.