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Finding the Fourth Proportional to 248,627.80, 372,941.70 and 143,651.80

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Solution

The fourth proportional to 248,627.80, 372,941.70 and 143,651.80 is: 215,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,627.80 : 372,941.70 = 143,651.80 : x
  2. Step 2: Convert to fraction form
    248,627.80/372,941.70 = 143,651.80/x
  3. Step 3: Cross multiply
    248,627.80x = 372,941.70 × 143,651.80
  4. Step 4: Simplify right side
    248,627.80x = 53,573,746,500.06
  5. Step 5: Solve for x
    x = 53,573,746,500.06/248,627.80
  6. Step 6: Final answer
    x = 215,477.70

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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.