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Finding the Fourth Proportional to 168,047.40, 252,071.10 and 154,050.60

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Solution

The fourth proportional to 168,047.40, 252,071.10 and 154,050.60 is: 231,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,047.40 : 252,071.10 = 154,050.60 : x
  2. Step 2: Convert to fraction form
    168,047.40/252,071.10 = 154,050.60/x
  3. Step 3: Cross multiply
    168,047.40x = 252,071.10 × 154,050.60
  4. Step 4: Simplify right side
    168,047.40x = 38,831,704,197.66
  5. Step 5: Solve for x
    x = 38,831,704,197.66/168,047.40
  6. Step 6: Final answer
    x = 231,075.90

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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.