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Finding the Fourth Proportional to 194,977.20, 292,465.80 and 191,040.60

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Solution

The fourth proportional to 194,977.20, 292,465.80 and 191,040.60 is: 286,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,977.20 : 292,465.80 = 191,040.60 : x
  2. Step 2: Convert to fraction form
    194,977.20/292,465.80 = 191,040.60/x
  3. Step 3: Cross multiply
    194,977.20x = 292,465.80 × 191,040.60
  4. Step 4: Simplify right side
    194,977.20x = 55,872,841,911.48
  5. Step 5: Solve for x
    x = 55,872,841,911.48/194,977.20
  6. Step 6: Final answer
    x = 286,560.90

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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.