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Finding the Fourth Proportional to 291,751.80, 437,627.70 and 173,362.20

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Solution

The fourth proportional to 291,751.80, 437,627.70 and 173,362.20 is: 260,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,751.80 : 437,627.70 = 173,362.20 : x
  2. Step 2: Convert to fraction form
    291,751.80/437,627.70 = 173,362.20/x
  3. Step 3: Cross multiply
    291,751.80x = 437,627.70 × 173,362.20
  4. Step 4: Simplify right side
    291,751.80x = 75,868,100,852.94
  5. Step 5: Solve for x
    x = 75,868,100,852.94/291,751.80
  6. Step 6: Final answer
    x = 260,043.30

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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.