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Finding the Fourth Proportional to 296,661.70, 445,090.98 and 119,077.30

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Solution

The fourth proportional to 296,661.70, 445,090.98 and 119,077.30 is: 178,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,661.70 : 445,090.98 = 119,077.30 : x
  2. Step 2: Convert to fraction form
    296,661.70/445,090.98 = 119,077.30/x
  3. Step 3: Cross multiply
    296,661.70x = 445,090.98 × 119,077.30
  4. Step 4: Simplify right side
    296,661.70x = 53,000,232,152.75
  5. Step 5: Solve for x
    x = 53,000,232,152.75/296,661.70
  6. Step 6: Final answer
    x = 178,655.46

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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.