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Finding the Fourth Proportional to 194,793.60, 292,305.60 and 70,118.40

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Solution

The fourth proportional to 194,793.60, 292,305.60 and 70,118.40 is: 105,219.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,793.60 : 292,305.60 = 70,118.40 : x
  2. Step 2: Convert to fraction form
    194,793.60/292,305.60 = 70,118.40/x
  3. Step 3: Cross multiply
    194,793.60x = 292,305.60 × 70,118.40
  4. Step 4: Simplify right side
    194,793.60x = 20,496,000,983.04
  5. Step 5: Solve for x
    x = 20,496,000,983.04/194,793.60
  6. Step 6: Final answer
    x = 105,219.07

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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.