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Finding the Fourth Proportional to 194,903.80, 292,355.70 and 54,686.20

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Solution

The fourth proportional to 194,903.80, 292,355.70 and 54,686.20 is: 82,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,903.80 : 292,355.70 = 54,686.20 : x
  2. Step 2: Convert to fraction form
    194,903.80/292,355.70 = 54,686.20/x
  3. Step 3: Cross multiply
    194,903.80x = 292,355.70 × 54,686.20
  4. Step 4: Simplify right side
    194,903.80x = 15,987,822,281.34
  5. Step 5: Solve for x
    x = 15,987,822,281.34/194,903.80
  6. Step 6: Final answer
    x = 82,029.30

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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.