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Finding the Fourth Proportional to 194,420.10, 291,630.15 and 69,744.90

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Solution

The fourth proportional to 194,420.10, 291,630.15 and 69,744.90 is: 104,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,420.10 : 291,630.15 = 69,744.90 : x
  2. Step 2: Convert to fraction form
    194,420.10/291,630.15 = 69,744.90/x
  3. Step 3: Cross multiply
    194,420.10x = 291,630.15 × 69,744.90
  4. Step 4: Simplify right side
    194,420.10x = 20,339,715,648.74
  5. Step 5: Solve for x
    x = 20,339,715,648.74/194,420.10
  6. Step 6: Final answer
    x = 104,617.35

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1.5x scale

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.