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Finding the Fourth Proportional to 155,452.60, 233,063.70 and 66,633.40

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Solution

The fourth proportional to 155,452.60, 233,063.70 and 66,633.40 is: 99,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,452.60 : 233,063.70 = 66,633.40 : x
  2. Step 2: Convert to fraction form
    155,452.60/233,063.70 = 66,633.40/x
  3. Step 3: Cross multiply
    155,452.60x = 233,063.70 × 66,633.40
  4. Step 4: Simplify right side
    155,452.60x = 15,529,826,747.58
  5. Step 5: Solve for x
    x = 15,529,826,747.58/155,452.60
  6. Step 6: Final answer
    x = 99,900.72

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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.